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HIGHER SECONDARY - SECOND YEAR

CHEMISTRY ONE MARK QUESTION & ANSWER

m o c . i a

Compiled by:

I A s i L v l A a k . M w A w w N N A . R Mr.R.ANNAMALAI ol

M.Sc(Chem).,M.Sc (Psy).,M.Phil.,B.Ed., B.Music., P.G. TEACHER IN CHEMISTRY GOVT. GIRLS HR.SEC.SCHOOL, GINGEE. VILLUPURAM DIST. email:[email protected]

Design:

Raasi Computers 199, Balaji Complex, Gandhi Bazaar, Gingee - 604 202. Mobile No.94442 82044

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Higher Secondary - Second Year BLUE PRINT - CHEMISTRY Maximum Marks : 150

Time : 180 Mins. KNOWLEDGE

OBJECTIVES

S.No

UNDERSTANDING

O E/LA SA VSA O - 1(1) - - 1(3) -

E/LA SA VSA

1 Atomic Structure

-

2 Periodic Classification

-

1(5) -

-

-

-

-

SKILL

APPLICATION

TOTAL

E/LA SA VSA

-

- 1(1) -

-

O E/LA SA VSA O - 1(1) - 1(5) - -

- 1(3) -

10

-

-

-

-

-

- 1(1) 12

09

-

3 p-Block elements

-

- 1(3) -

-

- 1(3) - 1(5) -

-

4 d-Block elements

- 1(5) 1(3) -

-

- 1(3) 1(1) -

-

- 1(1) 1(5) -

-

-

18

5 f-Block elements

-

-

- 1(1) -

-

-

-

07

-

-

-

11

- 1(1) -

- 1(3) -

09

-

-

6 Co-ordination & Bio-coordination

-

-

-

- 1(5) - 1(1) -

1(5) -

-

-

-

-

- 1(1) - 1(5) -

-

-

-

Compounds 7 Nuclear Chemistry

-

-

-

- 1(5) -

8 Solid state

-

-

-

-

-

-

-

-

-

m o c

- 1(3) - 1(5) -

. i a ol

-

-

I A s i L v l A a k . M w A w w N N A . R

9 Thermodynamics-II

-

-

10 Chemical equilibrium-II

-

- 1(3) -

11 Chemical Kintics-II

-

- 1(3) -

12 Surface Chemistry

1(5) -

- 1(1) -

-

- 1(1) - 1(5) -

- 1(5) -

- 1(1) -

-

-

-

- 1(1) -

- 1(3) 1(1) -

-

-

-

- 1(1) -

- 1(3) -

- 1(1) 09

- 1(3) -

- 1(1) 10

- 1(5) -

-

- 1(1) -

-

-

10

-

12

-

-

-

11

- 1(5) -

-

-

14

13 Electrochemistry - I

-

-

- 1(1) 1(5) - 1(3) -

14 Electrochemistry-II

-

-

-

- 1(5) -

-

-

- 1(5) -

-

-

-

-

-

10

15 Isomerism in Organic Chemistry

-

- 1(3) - 1(5) -

-

-

-

-

-

-

-

-

-

-

08

16 Hydroxy Derivatives

-

- 1(3) -

- 1(3) -

-

-

- 1(1) 1(5) -

-

-

12

17 Ethers

-

-

-

-

-

-

- 1(1) 07

18 Carbonyl Compounds

-

- 1(3) -

-

-

-

- 1(1) 1(5) -

19 Carboxylic Acids

-

- 1(3) - 1(5) -

-

- 1(5) - 1(1) -

20 Organic Nitrogen Compounds

1(5) -

-

- 1(1) - 1(5) -

-

-

- 1(5) -

-

-

14

- 1(1) -

- 1(3) -

11

-

-

-

-

-

-

07

- 1(5) -

-

-

-

-

-

08

-

- 1(1) 1(5) -

- 1(1) -

22 Chemistry in Action

-

-

-

-

- 1(3) -

-

14

- 2(1) -

-

-

-

-

-

-

-

-

21 Bio molecules

-

-

-

-

-

23 Problem in Chemistry TOTAL 20 5 24 6 25 20 24 10 15 25 6 10 20 10 9 No. of Questions Marks Summary / E / LA 8 80 Scheme of options Short Answer (SA) No. 12 60 Scheme of Sections Very Short Answer (VSA) No.21 63 Objective(O) 30 30 233 Knowledge : 24% Understanding : 34%

Part-I MCQ Part-II VSA Part-III SA Part-IV E / LA

-

4 233

30 / 30 15 / 21 7 / 12 3 / 6 & 1 Compulsory (Either or Type)

Application : 24% Skill : 18% v

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INDEX S.No.

Page No

LESSON

1 2 3 4 5 6

ATOMIC STRUCTURE - II PERIODIC CLASSIFICATION - II p - BLOCK ELEMENTS d - BLOCK ELEMENTS f - BLOCK ELEMENTS COORDINATION COMPOUNDS AND BIO-COORDINATION COMPOUNDS

1 2 3 4 6

7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

NUCLEAR CHEMISTRY SOLID STATE - II THERMONYNAMICS - II CHEMICAL EQUILIBRIUM - II CHEMICAL KINETICS - II SURFACE CHEMISTRY ELECTRO CHEMISTRY - I HYDROXY DERIVATIVES ETHERS CORBONYL COMPOUNDS CARBOXYLIC ACIDS ORGANIC NITROGEN COMPOUNDS BIOMOLECULES GOVERNMENT EXAMINATION MARCH - 2006 GOVERNMENT EXAMINATION JUNE - 2006 GOVERNMENT EXAMINATION OCTOBER - 2006 GOVERNMENT EXAMINATION MARCH - 2007 GOVERNMENT EXAMINATION JUNE - 2007 GOVERNMENT EXAMINATION OCTOBER - 2007 GOVERNMENT EXAMINATION MARCH - 2008 GOVERNMENT EXAMINATION JUNE - 2008 GOVERNMENT EXAMINATION OCTOBER - 2008 GOVERNMENT EXAMINATION MARCH - 2009 GOVERNMENT EXAMINATION JUNE - 2009 GOVERNMENT EXAMINATION OCTOBER - 2009 GOVERNMENT EXAMINATION MARCH - 2010 GOVERNMENT EXAMINATION JUNE - 2010 GOVERNMENT EXAMINATION OCTOBER - 2010 GOVERNMENT EXAMINATION MARCH - 2011 GOVERNMENT EXAMINATION JUNE - 2011 GOVERNMENT EXAMINATION OCTOBER - 2011 GOVERNMENT EXAMINATION MARCH - 2012 GOVERNMENT EXAMINATION JUNE - 2012 GOVERNMENT EXAMINATION OCTOBER - 2012 GOVERNMENT EXAMINATION MARCH - 2013 GOVERNMENT EXAMINATION JUNE - 2013 GOVERNMENT EXAMINATION OCTOBER - 2013 GOVERNMENT P.T.A MODEL QUESTION PAPER I - V

8 9 10 10 11 12 13 15 17 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74

7

m o c . i a

I l A o s i L v l A a k . M w A w w N R

N .A

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

R.ANNAMALAI

vii

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HIGHER SECONDARY - SECOND YEAR

CHEMISTRY INORGANIC CHEMISTRY 1. ATOMIC STRUCTURE - II

2 x 1= 2

Choose the correct answer 1. En= - 313.6 , If the value of Ei = -34.84 to which value ‘n’ corresponds n2 a) 4

b) 3

c) 2

d) 1

2. Dual character of an electron was explained by a) Bohr

b) Heisenberg

c) de-Broglie

m o c . i a

3. de-Broglie equation is mv a) λ= h

h λ= mv

I l A o s i L v l A a k . M w A w w N

b) λ=hmv

hv λ= m

c)

d)

4. The value of Bohr radius for hydrogen atom is a) 0.529 x 10-8cm

d) Pauli

b)0.529 x 10-10cm

c)�0.529 x 10-6cm

d)�0.529 x 10-12cm

5. Which of the following particle having same kinetic energy, would have the maximum de-Broglie wave length a) α - particle

b) proton

c) β - particle

N .A

d) neutron

6. If the energy of an electron in the second Bohr orbit of H-atom is - E, what is the energy of the electron in the Bohr’s first orbit?

R

a) 2E

b) -4E

c)

-2E

d) 4E

7. The energy of electron in an atom is given by En= a) -

4π2me4 n2h2

b)

-

2π2me2 n2h2

c)

-

2π2me4 d) n2h2

-

2πme4 n2h2

8. The bond order of Oxygen molecule is a) 2.5

b) 1

c) 3

d) 2

9. The hybridisation in SF6 molecule is a) sp3

b)�sp3d2

c) sp3d

d)

sp3d3

10. The intramolecular hydrogen bonding is present in a) o-nitrophenol

b) m-nitro phenol

c) p-nitrophenol

d) None

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

R.ANNAMALAI

Page : 1

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2. PERIODIC CLASSIFICATION - II

1 x 1= 1

Choose the correct answer:1. The value of C-C distance found experimentally in a saturated hydrocarbon is a) 1.34Å b) 1.36Å c) 1.54Å 2. On moving down the group, the radius of an ion

d) 1.56Å

a) Decreases b) Increases c) No change d) None of these 3. Effective nuclear charge (Z*) can be calculated by using the formula a) Z* = Z - S

b) Z* = Z + S

c)� Z* = S - Z

d)�Z = Z* - S

4. Pick the correct statement a) Carbon having more nuclear charge than boron b) The size of carbon atoms is larger than boron c) Carbon forms electron deficient compounds d) Carbon forms ionic compounds 5. Comparing the ionisation energy of fluorine with carbon, fluorine has a) higher ionisation energy

b) lower ionisation energy

m o c . i a

c) same ionisation energy d) none of these 6. Among the following which has the maximum ionisation energy a) Alkali elements

I l A o s i L v l A a k . M w A w w N b) Alkaline elements

c) Halogens

7. The electron affinity of an atom

d) Noble gases

a) directly proportinal to its size

b) inversely proportional to its size

c) is independent of its size

d) none of these

8. Among the following which has higher electron affinity value a) Fluorine

b) Chlorine

c) Bromine

N .A

d) Iodine

9. The scale which is based on an empirical relation between the energy of a bond and the electrongativities of bonded atoms is a) Pauling scale

R

b) Mulliken’s scale

c) Sanderson’s scale d) Alfred and Rochow’s scale 10. Electron affinity is expressed in a) KJ

b) J

c) KJ mol

d) KJ mol-1

11. The bond length of Cl2 molecule is a) 0.74 b) 1.44 12. The order of ionization energy a)s
b) s>p>d>f

c) 1.98

d) 2.28

c) s>d>p>f d) s
13. Across the period, electron affinity a) decreases

b) increases

c) decrease and the increases

d) increase and then decreases

14. Noble gases have .................. electron affinity a) High

b) Low

c) Zero

d) Very low

15. When XA>> XB, A - B bond is a) polar covalent

b) non-polar covalent

c) Ionic

d) metallic

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

R.ANNAMALAI

Page : 2

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3. p - BLOCK ELEMENTS

1 x 1= 1

Choose the correct answer: 1. Which of the following does not belong to group 13? a) B b) Al c) Ge d) In 2. Which of the following is most abundant in earth’s crust? a) C

b) Si

c) Ge

d) Sn

3.An element which was burnt in limited supply of air to give oxide A which on treatment with water gives an acid. B Acid B on heating gives acid C which gives yellow precipilate with AgNO3 solution A is a) SO 2

b) NO 2

c) P2O3

d) SO3

4. The compound with garlic odour is a)P2 O 3

b)P2 O 5

c) H3PO3

d) H3PO4

5. The shape of PCl5 is a) pyramidal

b) trigonal bipyramidal

c) linear

d) tetrahedral

6. The compound used as smoke screen a) PCl3

b) PCl5

c) PH3

7. Which shows only - 1 oxidation state? a) F

b) Br

I l A o s i L v l A a k . M w A w w N c) Cl

d) I

8. One can draw the map of building on a glass plate by a) HI

b) HF

m o c . i a

d) H3PO3

c) HBr

d) HCl

9. Among the halogen acid, the weakest acid is a) HF

b) HCl

c) HBr

d) HI

10. Halogens belong to the group number a) 14

b) 15

N .A

c) 17

d) 18

11. The noble gases are unreactive because they a) have same number of electrons

R

b) have an atomicity of one

c) are gases with low densities d) have stable electronic configuration 12. The shape of XeF4 is a) tetrahedral

b) octahedral

c) square planar

d) pyramidal

13. Which is not known? a) XeF6

b) XeF4

c) XeO3

d) ArF6

14.The lightest gas which is non-inflammable is a) He

b) H2

c) N2

d) Ar

15. Which of the following has highest first ionisation energy? a) He

b) Ne

c) Ar

d) Kr

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

R.ANNAMALAI

Page : 3

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2 x 1= 2

4. d - BLOCK ELEMENTS Choose the correct answer: 1. The general electronic configuration of d-block element is a) (n-1)d1-10 ns0-2

b) (n-1) d1-5 ns2

c) (n-1)d0 ns1

d) None of these

2. Formation of coloured ions is possible when compounds contains a) paired electrons

b) unpaired electrons

c) lone pairs of electrons

d) none the above

3. Paramagnetism is common in a) p-block elements

b) d-block elements

c) s-block elements

d) f-block elements

4. The colour of Ti(H2O) ion is due 3+ 6

a) d-d transistion

b) Presence of water molecules

c) Inter atomic transfer of electrons d) none the above 5. The electronic configuration of chromium is a) 3d6 4s0

b) 3d5 4s1

c) 3d4 4s2

d) 3d3 4s2 4p1

6. Paramagnetism is the property of a) paired electrons

b) completely filled electronic subshells

c) unpaired electrons

d) completely vacant electronic subshells

m o c . i a

I l A o s i L v l A a k . M w A w w N

7. d-block elements form coloured ions because

a) They absorb some energy for d-s transition

b) They absorb some energy for p-d transition c) They absorb some energy for d-d transition d) They do not absorb any energy

8. The correct electronic configuration of copper atom is a) 3d10 4s1

b) 3d10 4s2

9. Copper is extracted from

c) 3d9 4s2

N .A

a) cuprite b) copper glance 10. Silver salt used in photography is

R

a) AgCl

b) AgNO3

d) 3d5 4s2 4p4

c) malachite

c) AgF

d) copper pyrites

d) AgBr

11. Sodiumthiosulphate is used in photography because of its a) Oxidizing behaviour

b) Reducing behaviour

c) Complexing behaviour

d) Photochemical behaviour

12. Excess of sodium hydroxide reacts with zinc to form a) ZnH2

b) Na2 ZnO2

c) ZnO

d) Zn(OH)2

13. Which of the following compounds will not give positive chromyl chloride test? a) CuCl2

b) HgCl2

c) ZnCl2

d) C6H5Cl

14. Which of the ions will give colourless aqueous solution? a) Ni2+

b) Fe2+

c) Cu2+

d) Cu+

15. Which of the following compounds is not coloured? a) Na2CuCl4

b) Na2CdI4

c) K4 [Fe(CN)6 ]

d) K3[Fe(CN)6]

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

R.ANNAMALAI

Page : 4

www.kalvisolai.com 16. In the extraction of Cu, the reaction which does not take place in the Bessemer converter is a) 2CuFeS2 + O2

Cu2S + FeS + SO2

b) 2Cu2S + 3O2

c) 2Cu2O + Cu2S

6Cu + SO2

d) 2FeS + 3O2

2Cu2O + 2SO2 2FeO + 2SO2

17. Select the wrong statement a) All cuprous salts are blue in colour b) Transition metals are highly reactive c) All cuprous salts are white in colour d) Mercury is a liquid metal 18. Choose the wrong statment regarding K2Cr2O7 a) It is a powerful oxidizing agent b) It is used in tanning industry c) It is soluble in water d) It reduces ferric sulphate to ferrous sulphate 19. For a transition metal ion, the effective magnetic moment in BM is given by the formula a)

n(n-1)

b)

n(n+1)

c)

n(n+2)

m o c . i a d)

n(n+1) (n+2)

I l A o s i L v l A a k . M w A w w N

20. The correct statement in respect of d-block elements is a) They are all metals

b) They sho variable valency

c) They form coloured ions and complex salts d) All above statement are correct

21. Which compound is formed when excess of KCN is added to an aqueous solution of copper sulphate a) Cu2 (CN)2

N .A

b) K2 [Cu(CN)6 ]

c) K [Cu(CN)2 ]

d) Cu2 (CN)2 + (CN)2

22. Which of the following has the maximum number of unpaired electrons? a) Mn2+

R

b) Ti3+

c) V3+

d) Fe2+

23. Among the following statement, the incorrect one is a) Calamine and siderite are carbonates b) Argentite and cuprite are oxides c) Zine blende and pyrites are sulphides d) Malachite and azurite are ores of copper 24. The chemical composition of slag formed during the smelting process in the extraction of copper is a) Cu2O+FeS

b) FeSiO3

c) CuFeS2

d) Cu2S+FeO

25. The transition element with the lowest atomic number is a) Scandium

b) Titanium

c) Zinc

d) Lanthanum

26. Which transition element show highest oxidation state a) Sc

b) Ti

c) Os

d) Zn

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

R.ANNAMALAI

Page : 5

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5. f - BLOCK ELEMENTS

2 x 1= 2

Choose the correct answer: 1. The electronic configuration of Lanthanides is a) [Xe]4f0 5d0 6s0

b) [Xe]4f1-7 5d1 6s1

c) [Xe]4f1-14 5d1 6s2

d) [Xe]4f1-14 5d1-10 6s2

2. The electronic configuration of Actinides is a) [Rn]5f0-14 6d0 7s0

b) [Rn]5f0-14 6d0-2 7s0

c) [Rn]5f0-14 6d0-2 7s1

d) [Rn]5f0-14 6d0-2 7s2

3. The lanthanide contraction is responsible for the fact that a) Zn and Y have about the same radius

b) Zr and Nb have similar oxidation state

c) Zr and Hf have about the same radius

d) Zr and Zn have the same oxidation state

4. The most common oxidation state of lanthanides is a) +2 b) +1 5. Lanthanides are extracted from a) Limonite

c) +3

b) M onazite

d) +4 c) M agnetite

m o c . i a

d) Cassiterite

6. The elements in which the extra electron enters (n-2) f orbitals are called

I l A o s i L v l A a k . M w A w w N

a) s - block elements

b) p - block elements

c) d - block elements d) f - block elements 7. The Lanthanides contraction is due to a) Perfect shielding of 4f electron

b) Imperfect shielding of 4f electron

c) Perfect shielding of 3d electron

d) Imperfect shielding of 3d electron

8. Ceria is used in a) toys

b) tracer bullets

c) gas lamp materials

N .A

d) none of the above

9. .................. is used in gas lamp material a) MnO2

b) CeO2

R

c) N2O5

d) Fe2O3

10. Alloys of Lanthanides are called as a) Mish - metals

b) Metalloids

c) Plate metals

d) Actinides

11. Metallothermic processes involving Lanthanides are called as a) Aluminothermic process

b) Lanthanido - thermic process

c) Reduction process

d) Oxidation process

12. ................... form oxocations a) Lanthanides

b) Actinides

c) Noble gases

d) Alkalimetals

13. Maximum oxidation state exhibited by Lanthanides is a) +1

b) +2

c) +3

d) +4

14. Lanthanides are separated by a) Fractional distillation

b) Steam distillation

c) Fractional Crystallisation

d) Sublimation

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

R.ANNAMALAI

Page : 6

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6. COORDINATION COMPOUNDS AND BIO-COORDINATION COMPOUNDS

1 x 1= 1

Choose the correct answer 1. Which a double salt a) K2SO4.Al2(SO4)3.24H2O

b)NaCl

c) K4[Fe(CN)6]

d) KCl

2. An example of a complex compound having coordination number 4 a) K4[Fe(CN)6]

b)[Co(en)3]Cl3

c) [Fe(H2O)6]Cl3

d) [Cu(NH3)4]Cl2

3. The geometry of [Cu(NH3)4]2+ complex ion a) Linear

b) Tetrahedral

c) Square planar

d) Angular

4. An example of a chelating ligand is a) NO-2

b) Chloro

c) Bromo

d) en

5. The geometry of complex ion [Fe(CN6]4- is a) tetrahedral

b) square planar

c) Octahedral

d) triangular

6. The oxidation number of Nickel in the complex ion, [NiCl4]2- is a) +1

b) -1

c) +2

d) -2

7. Which is not an anionic complex?

m o c . i a

I l A o s i L v l A a k . M w A w w N

a) [Cu(NH3)4]Cl2

b) K4[Fe(CN)6]

c) K3[Fe(CN)6]

8. The geometry of [Ni(CN)4]2- is a) Tetrahedral

b) Square planar

c) Triangular

d) [NiCl4]2-

d) Octahedral

9. An example of an ambidentate ligand is a) CN-

b) Cl-

c) NO2-

d) I-

10. [FeF6]4- is paramagnetic because a) F-is a weaker ligand

b) F-is a strong ligand

N .A

c) F - is a flexidentate ligand

d) F - is a chelating ligand

11. In [Fe (CN)6] the central metal ion is II

4-

a) Fe

R

b) Fe+2

c) Fe+3

d) CN-

12. The coordination number of Ni (II) in [Ni(CN)4]2- is a) 2

b) 4

c) 5

d) 6

13. The name of [Pt IV(NH3)2Cl2]2+ is a) Diamminedichloroplatinum (IV) ion c) Diamminedichloroplatinum 14. For a compound K4[Fe(CN)6]

b) Diamminedichloroplanitate (IV) d) Dichlorodiammineplatinum (IV) ion 4K + [Fe(CN6]4-, the complex ion is +

a) K+ b) CNc) FeII d) [Fe(CN)6]415. A metal ion from the first transition series forms an octahedral complex with magnetic moment of 4.9 BM and another octahedral complex which is diamagnetic. The metal ion is a) Fe2+

b) Co2+

c) Mn2+

d) Ni2+

16. Paramagnetic moment is expressed in a) Debye unit

b) K Joules

c) BM

d) ergs

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

R.ANNAMALAI

Page : 7

www.kalvisolai.com 17. The type of isomerism found in the complexes [Co(NO2)(NH3)5]SO4 and [Co(SO4)(NH3)5]NO2 a) Hydrate isomerism

b) Coordination isomerism

c) Linkage isomerism

d) Ionisation

18. Valence bond theory does not explain the property of complex compound a) geometry

b) magnetic

c) nature of ligand

d) colour

7. NUCLEAR CHEMISTRY

1 x 1= 1

Choose the correct answer:1. The phenomenon of radioactivity was discovered by a) Mada curie

b) Pierre curie

c) Henry Becquerrel

d) Rutherford

2. The most penetrating radiations are a) α rays

b) β rays

3. In the nuclear reaction, 92U238 a) 7α, 5β

m o c . i a

c) γ rays

d) All are equally penetrating

Pb206, the of α and β particles emitted are

I l A o s i L v l A a k . M w A w w N 82

b) 6α, 4β

c) 4α, 3β

d) 8α, 6β

4. Which one of the following particles is used to bombard 13Al27 to give 15p30 and a neutron a) α particle

b) deuteron

5. The reaction 5B8 a) α decay

c) proton

d) neutron

Be8 takes place due to

4

b) β decay

6. Radioactivity is due to

c) electron capture

d) positron decay

N .A

a) Stable electronic configuration b) Stable nucleus c) Unstable nucleus

R

d) Unstable electronic configuration 7. In the following radioactive decay, 92X232 a) 3α, 3β

b) 5α, 3β

y220 , how many α and β Particles are ejected.

89

c) 3α, 5β

d) 5α, 5β

8. 92U235 nucleus absorbs a neutron and disintegrates into 54Xe139, 38Sr94 and x. What will be the product x? a) 3 neutrons

b) 2 neutrons

c) α particle

d) β particle

9. Loss of a β-particle is equivalent to a) Increase of one proton

b) Decrese of one neutron only

c) Both (a) and (b)

d) None of these

10. Which of the following is used as neutron absorber in the nuclear reactor? a) Water

b) Deuterium

c) Some compound of uranium

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PHYSICAL CHEMISTRY 8. SOLID STATE - II

1 x 1= 1

Choose the correct answer. 1. The number of chloride ions that surrounds the central Na+ ion in NaCl crystal is .............. a) 12

b) 8

c) 6

d) 4

2. The Bragg’s equation is a) λ=2d sinθ

b) nd=2λsinθ

c) 2λ=nd sinθ

d) nλ=2d sinθ

3. A regular three dimensional arrangement of indentical points in space is called a) Unit cell

b) Space lattice

c) Primitive

d) Crystallography

4. The smallest repeating unit in space lattice which when repeated over and again results in the crystal of the given substance is called a) Space lattice

b) Crystal lattice

c) Unit cell

d) Isomorphism

5. The crystal structure of CsCl is a) Simple cubic

m o c

b) face-centred cubic

c) Tetragonal

6. An example for Frenkel defect is

d) Body centred cubic

. i a ol

I A s i L v l A a k . M w A w w N N A . R

a) NaCl

b) AgCl

c) CsCl

d) FeS

7. Semiconductors which exhibit conductivity due to the flow of excess negative electrons are called a) Super conductors

b) n-type semiconductors

c) p-type semiconductors

d) Insulators

8. In the Bragg’s equation for diffraction of X-rays, ‘n’ represents a) The number of moles

b) Avogadro number

c) A quantum number

d) Order of reflection

9. The number of close neighbours in a body centred cubic lattice of identical sphares is a) 6

b) 4

c) 12

d) 8

10. The crystals which are good conductors of electricity and heat are a) Ionic crystals

b) Molecular crystals

c) Metallic crystals

d) Covalent crystals

11. In a simple cubic cell, each point on a corner is shared by a) One unit cell

b) Two unit cell

c) 8 unit cell

d) 4 unit cell

12. The ability of certain ultra cold substances to conduct electricity without resistance is called a) Semiconductor

b) Conductor

c) Superconductor

d) Insulator

13. The total number of atoms per unit cell is bcc is a) 1

b) 2

c) 3

d) 4

14. Rutile is a) TiO2

b) Cu2O

c) MoS2

d) Ru

15. Semiconductors are used as a) rectifiers

b) transistors

c) solar cells

d) all the above

16. An example of metal deficiency defect a) NaCl

b) AgCl

c) CsCl

d) FeS

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9. THERMONYNAMICS - II

2 x 1= 2

Choose the correct answer. 1. The amount of heat exchanged with the surrounding at constant temperature and pressure is called a) Δ E b) Δ H c) Δ S d) Δ G 2. All the naturally occuring processes proceed spontaneously in a direction which leads to a) decrease of entropy

b) increase in enthalpy

c) increase in free energy

d) decrease of free energy

3. In an adiabatic process which of the following is true? a) q = w b) q = 0 4. When a liquid boils, there is

c) ΔE = q

d) PΔV = 0

a) an increase in entropy b) a decrease in entropy c) an increase in heat of vapourisation d) an increase in free energy 5. If ΔG for a reaction is negative, the change is a) Spontaneous

b) Non-spontaneous

m o c . i a

I l A o s i L v l A a k . M w A w w N

c) Reversible

d) Equilibrium

6. Which of the following does not results in an increase in the entropy? a) crystallisation of sucrose from solution b) rusting of iron

c) conversion of ice to water d) vaporisation of camphor

7. In which of the following process, the process is always non-feasible? a) ΔH>0, ΔS>0

N .A

b) ΔH<0, ΔS>0

c) ΔH>0, ΔS<0

R

d) ΔH<0, ΔS<0

8. Change in Gibb’s free energy is given by a) ΔG = ΔH + TΔS

b) ΔG = ΔH - TΔS

c) ΔG = ΔH x TΔS

d) None of the above

9. For the reaction 2Cl(g) a) +, –

Cl2(g), the signs of Δ H and Δ S respectively are

b) +, +

c) –,–

d) –, +

10. CHEMICAL EQUILIBRIUM - II

2 x 1= 2

Choose the correct answer. 1. State of chemical equilibrium is a) dynamic

b) stationery

c) none

d) both

2. If the equilibrium constants of the following reactions are 2A a) K1 = 2K2

b) K1 = 1/K2

c) K2 = (K1)2

B is K1 and B

d) K1 = 1/K22

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2A is K2, then

Page : 10

www.kalvisolai.com 3. In the reversible reaction 2HI a) greater than Kc

H2 + I2, is

b) less than Kc

4. In the equilibrium N2 + 3H2 process having

c) Equal to Kc

d) Zero

2NH3 , the maximum yield of ammonia will be obtained with the

a) low pressure and high temperature

b) low pressure and low temperature

c) high temperature and high pressure

d) high pressure and low temperature

5. For the homogeneous gas reaction at 600 K 4NH3(g) + 5O2(g)

4NO(g) + 6H2O(g)

a) (mol dm-3)-2

b) (mol dm-3)

c) (mol dm-3) 10

d) (mol dm-3)-9

6. Two moles of ammonia gas are introduced into a previously evacuated 1.0 dm3 vessel in which it partially dissociates at high temperature. At equilibrium 1.0 mole of ammonia remains. The equilibrium constant Kc for the dissociation is a) 27/16 (mole dm-3)2

b) 27/8 (mole dm-3)2

c) 27/4 (mole dm-3)2

d) None

m o c . i a

7. An equilibrium reaction is endothermic if K1 and K2 are the equilibrium constants at T1 and T2 temperature respectively and if T2 is greater than T1 than a) K1 < K2

I l A o s i L v l A a 11. CHEMICAL KINETICS - II 1 x 1= 1 k . M w A w w N

b) K1 > K2

c) K1 = K2

d) None

Choose the correct answer

1. Hydrolysis of an ester by dilute HCl is an example for (a) Second order reaction

N .A

(b) zero order reaction

(c) pseudo first order reaction

R

(d) first order reaction

2. The unit of zero order rate constant is (a) litre mol–1sec–1

(b) mol litre–1 sec–1

(c) sec–1

(d) litre2 sec–1

3. The excess energy which a molecule must process to becom active is known as ty

(a) kinetic energy (c) potential energy

(b) threshold energy (d) activation energy

4. Arrhenius equation is (a) k = Ae–1/RT

(b) k = Ae–RT/Ea

(c) k = Ae–Ea/RT

(d) k = AeEa/RT

5. The term A in arrhenius equation is called as (a) Probability factor (c) Collision factor

(b) Activation of energy (d) Frequency factor

6. The sum of the powers of the concentration terms that occur in the rate equation is called (a) molecularity (c) rate

(b) Order (d) rate constant

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www.kalvisolai.com 7. Reactions in which the reacting molecules resact in more than one way yielding different set of products are called (a) consecutive reactions

(b) parallel reactions

(c) opposing reactions

(d) chain reactions

8. The half life period of a first order reaction is 10 minutes. Then its rate constant is (a) 6.93 x 102 min–1

(b) 0.693 x 10–2 min–1

(c) 6.932 x 10–2 min–1

(d) 69.3 x 10–1 min–1

9. For a reaction : aA bB, the rate of reaction is doubled when the concentratin of A is increased by your times. The rate of reaction is equal to (a) k [A]a

(b) k [A]½

10. 2N2O5 d [NO2]

4NO2 + O2, = k2 [N2O5] and

(c) k [A]1/a

(d) k [A]

d [N2O5] = k1[N2O5], dt d [O2 ]

= k3 [N2O5], the relation between k1, k2 and k3 is dt (b) k1 = k2 = k3 (c) 2k1 = k2 = 4k3 (d) 2k1 = k2 = k3

dt (a) 2k1 = 4k2 = k3

m o c . i a

11. For a reaction, Ea = 0 and k = 4.2 x 105 sec–1 at 300 K, the value of k at 310K will be

I l A o s i L v 12. SURFACE CHEMISTRY 3 x 1= 3 l A a k . M w A w w N

(a) 4.2 x 105 sec–1

(b) 8.4 x 105 sec–1

(c) 7.4 x 104 sec–1

(d) unpredictable

Choose the correct answer

1. The migration of colloidal particles under the influence of an electric field is known as (a) electroosmosis (c) electrodialysis

(b) cataphoresis

N .A

(d) electrophoresis

2. Which one is the correct factor that explains the increase of rate of reaction by a catalyst

R

(a) shap selectivity

(c) increase of free energy

(b) particle size (d) lowering of activation energy

3. Fog is a colloidal solution of (a) gas in liquid

(b) liquid in gas

(c) gas in solid

(d) solid in gas

4. The phenomenon of Tyndall’s effect is not observed in (a) emulsion

(b) colloidal solution

(c) true solution

(d) None

5. The Tyndall’s effect associated with colloidal particles is due to (a) presence of change

(b) scattering of light

(c) absorption of light

(d) reflection of light

6. In case of physical adsorption, there is desorption when (a) temperature increases

(b) temperature decreases

(c) pressure increases

(d) concentration increases

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www.kalvisolai.com 7. Colloidal medicines are more effective because (a) they are clean (b) they are easy to prepare (c) the germs more towards, them

(d) they are easily assimilated and adsorbed

8. Oil soluble dye is mixed with emulsion and emulsion remains colourless then, the emulsion is (a) O/W

(b) W/O

(c) O/O

(d) W/W

9. For selective hydrogenation of alkyness into alkene the catalyst used is (a) Ni / 250°C

(b) Pt / 25°C

(c) Pd, partially inactivated by quinoline

(d) Raney nickel

10. For chemisorption, which is wrong (a) irreversivle (b) it requires activation energy (c) it forms multimolecular layers on adsorbate (d) surface compounds are formed 11. An emulsion is a colloidal solution of (a) two solids

(b) two liquids

(c) two gases

12. Colloids are purified by (a) precipitation

(d) one solid one liquid

m o c . i a

I l 13. ELECTRO CHEMISTRY -I A 1 x 1= 1 o s i L v l A a k . M w A w w N (b) coagulation

(c) dialysis

(d) filtration

Choose the correct answer

1. The process in which chemical change occurs on passing electricity is termed as ................ (a) neutralisation

(b) hydrolysis

(c) electrolysis

(d) ionisation

2. The laws of electrolysis were enunciated first by ................... (a) Dalton

N .A

(b) Faraday

(c) Kekule

(d) Avogadro

3. When one coulomb of electricity is passed through an electrolytic solution, the mass deposited on the electrode is equal to ........................ (a) equivalent weight

R

(b) molecular weight

(c) electrochemical equivalent

(d) one gram

4. Faraday’s laws of electrolysis are related to ............... (a) atomic number of the cation

(b) atomic number of the anion

(c) equivalent weight of the electrolyte

(d) speed of the cation

5. The specific conductance of a 0.01 M solution of KCl is 0.0014 ohm–1 cm–1 at 25oC. Its equivalent conductance is .................. (a) 14 ohm–1 cm2 eq–1 (c) 1.4 ohm–1 cm2 eq–1

(b) 140 ohm–1 cm2 eq–1 (d) 0.14 ohm–1 cm2 eq–1 o

6. The equivalent conductivity of CH3COOH at 25 C is 80 ohm–1 cm2 eq–1 and at infinite dilution 400 ohm–1 cm2 eq–1. The degree of dissociation of CH3COOH is ...................... (a) 1

(b) 0.2

(c) 0.1

(d) 0.3

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www.kalvisolai.com 7. When sodium acetate is added to acetic acid, the degree of ionisation of acetic acid ................ (a) increases

(b) decreases

(c) does not change

(d) becomes zero

8. NH4OH is a weak base because ............... (a) it has low vapur pressure

(b) it is only partially ionised

(c) it is completely ionised

(d) it has low density

9. Which one of the following formulae represents Ostwald’s dilution law for a binary electrolyte whose degree of dissociation is α and concentration C. (a) K =

(1-α) C α

(b) K =

α 2C 1-α

(c) K =

(1-α)C α2

(d) K =

α 2C (1- α)C

10. Ostwald’s dilution law is applicable in the case of the solution of ................ (a) CH3COOH

(b) NaCl

(c) NaOH

(d) H2SO4

11. Which one of the following relationship is correct? (a) pH =

1 [H+]

m o c . i a

(b) pH = log10 [H+]

I l A o s i L v l A a k . M w A w w N

(c) log10 pH = [H+]

(d) pH = log10

1

[H+] 12. When 10–6 mole of a monobasic strong acid is dissolved in one litre of solvent, the pH of the solution is ...................... (a) 6

(b) 7

(c) less than 6

(d) more than 7

13. When pH of a solution is 2, the hydrogen ion concentration in moles litre - 1 is .............. (a) 1 X 10–12

(b) 1 X 10–2

N .A

(c) 1 X 10–7

(d) 1 X 10–4

14. The pH of a solution containing 0.1 N NaOH solution is ................. (a) 1

(b) 10–1

R

(c) 13

(d) 10–13

15. A solution which is resistant to changes of pH on addition of small amounts of an acid or a base is known as ................. (a) buffer solution

(b) true solution

(c) isohydric solution

(d) ideal solution

16. The hydrogen ion concentration of a buffer solution consisting of a weak acid and its salt is given by ................. (a) [H+] = Ka

[Acid] [Salt]

(b) [H+] = Ka [Salt]

[Salt] [Acid] 17. Indicators used in acid - base titrations are .................. (c) [H+] = Ka [Acid]

(d) [H+] = Ka

(a) strong organic acids

(b) strong organic bases

(c) weak organic acids or weak organic bases

(d) non-eletrolysis

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www.kalvisolai.com 18. For the titration between oxalic acid and sodium hydroxide, the indicator used in ............... (a) potassium permanganate

(b) phenolphthalein

(c) litmus

(d) methyl orange

16. HYDROXY DERIVATIVES

1 x 1= 1

Choose the correct answer. 1. Which has the highest boiling point? (a) CH3CH3

(b) CH3OH

(c) C2H5OH

(d) C3H8

2. Which is soluble in H2O? (a) Phenol

(b) Alkanes

(c) Alcohols

(d) Alkenes

3. Order of reactivity of alcohol towards sodium metal is (a) primary < secondary > tertiary (b) primary > secondary > tertiary (c) primary < secondary < tertiary (d) primary > secondary < tertiary

m o c . i a

I l A o s i L v l A a k . M w A w w N

4. The boiling point of ethyl alcohol should be less than that of (a) propane

(b) formic acid

(c) dimethyl ether

(d) None of the above

5. Ethyl alcohol cannot be used as a solvent for CH3MgI because (a) CH3MgI reacts with alcohol giving methane

(b) The reaction between them is explosive in nature

N .A

(c) CH3MgI is converted to C2H5MgI (d) Alcohol is immicible with CH3MgI

R

6. When alcohols are converted to alkyl chlorides by thionyl chloride in presence of pyridine the intermediate formed is (a) sulphonium ion

(b) chlorosulphonic acid

(c) alkyl chlorosulphite

(d) chlorosulphite

7. On oxidation of an alcohol gives an aldehyde having the same number of carbon atoms as that of alcohol. The alcohol is (a) 1o alcohol

(b) 2o alcohol

(c) 3o alcohol

(d) None

8. A compound that gives a positive iodoform test is (a) 1-pentanol

(b) 2-pentanone

(c) 3-pentanone

(d) pentanal

9. The compound that racts fastest with Lucas reagent is (a) butan - 1 - ol

(b) butan - 2 - ol

(c) 2 methyl propan - 1 - ol

(d) 2 - methyl propan - 2 - ol

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www.kalvisolai.com 10. The ionization constant of phenol is higher than that of ethanol because (a) phenoxide ion is bulkier than ethoxide (b) phenoxide ion is sronger base than ethoxide (c) phenoxide ion is stablized through delocalisation (d) phenoxide ion is less stable than ethoxide ion 11. Among the following compounds strongest acid is (a) HC = CH

(b) C6H6

(c) C2H6

(d) CH3OH

12. The most unlikely representation of resonance structures of p-nitrophenoxide ion is (a)

(b)

N o

o-

o

o-

(c)

o

(-)

o(-)

o

N +

o

(d)

o

(-)

N +

-

o

o-

N +

o

13. p-nitrophenol is having lower pKa value than phenol because

m o c . i a

(a) phenol is more acide than p-nitro phenol

I l A o s i L v l A a k . M w A w w N

(b) anion of p-nitrophenol is more stabilised by resonance than that of phenol (c) degree of ionisation of p-nitro phenol is less than that of phenol (d) anion of p-nitrophenol is less stable than that of phenol 14. The reaction of Lucas reagent is fast with (a) (CH3)3COH

(b) (CH3)2CHOH

(c) CH3(CH2)2OH

(d) CH3CH2OH

15. When phenol is distilled with Zn dust it gives (a) benzaldehyde

(b) benzoic acid

N .A

(c) toluene

(d) benzene

16. A compound that undergoes bromination easily is (a) benzoic acid

(b) benzene

R

(c) phenol

(d) toluene

17. Isomerism exhibited by ethylene glycol is (a) position isomerism

(b) chain isomerism

(c) functional isomerism

(d) both (a) and (c)

18. Ethylene diamine is converted to ethylene glycol using (a) Na2CO3 solution

(b) nitrous acid

(c) NaHCO3 (aqueous)

(d) Baeyer’s reagent

19. Ethylene glycol forms terylene with (a) adipic acid

(b) phthalic anhydride

(c) terephthalic acid

(d) oxalic acid

20. 1 - propanol and 2 - propanolcan be best distinghished by (a) oxidation with KMnO4 followed by reaction with Fehling solution (b) oxidation with acid dichromate followed by reaction with Fehling solution (c) oxidation by heating with copper followed by reaction with Fehling solution (d) oxidation with concentrated H2SO4 followed by reaction with Fehling solution M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

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Page : 16

www.kalvisolai.com 21. Glycerol is used (a) as a sweeteing agent (b) in the manufacture of good quality soap (c) in the manufacture of nitro glycerin (d) in all the above 22. The alcohol obtained by the hydrolysis of oils and fats is (a) pentanol

(b) propanol

(c) glycerol

(d) glycol

23. The number of secondary alcoholic group in glycerol is (a) 1

(b) 2

(c) 3

(d) 0

24. The active component of dynamite is (a) Keiselghur

(b) Nitro glycerine

(c) Nitro benzene

(d) Trinitro toluene

25. The reaction of ethylene glycol with PI3 gives (a) ICH2CH2I

(b) CH2 = CH2

(c) CH2 = CHI

(d) ICH = CHI

m o c . i a

17. ETHERS

I l A o s i L v l A a k . M w A w w N

Choose the correct answer:

2 x 1= 2

1. The isomerism exhibited by C2H5OC2H5 and CH3 – O – CH – CH3 is | CH3 (a) Functional

(b) metamerism

(c) position

(d) chain

2. Which one of the following is simple ether? (a) CH3 – O – C2H5

(b) C2H5 – O – CH3

(c) C2H5 – O – C2H5

N .A

(d) C3H7 – O – C2H5

3. Diethyl ether can be decomposed with

R

(a) HI

(b) KMnO4

(c) NaOH

(d) H2O

4. Oxygen atom of ether is (a) very active

(b) Replacable

(c) oxidising

(d) Comparatively inert

5. According to Lewis concept of acids and bases, ethers are (a) Neutral

(b) Acidic

(c) Basic

(d) Amphoteric

6. Intermolecular hydrogen bonds are not present in (a) CH3COOH

(b) C2H5OC2H5

(c) CH3CH2OH

(d) C2H5NH2

7. When ethyl Iodide is treated with dry silver oxide it forms (a) Ethyl alcohol

(b) diethylether

(c) silver ethoxide

(d) ethylmethyl ether

8. Williamson’s synthesis is an example of (a) nucleophilic addition

(b) electrophilic addition

(c) electrophilic substitution

(d) Nucleophilic substitution reaction

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www.kalvisolai.com 9. When ether is exposed to air for sometime an explosive substance produced is (a) peroxide

(b) oxide

(c) TNT

(d) superoxide

10. Ether is formed when alkylhalide is treated with sodium alkoxide. This method is known as (a) Hoffmann reaction

(b) Williamson’s synthesis

(c) Wurtz synthesis

(d) Kolbe’s reaction

18. CORBONYL COMPOUNDS

1 x 1= 1

Choose the correct answer 1. The chain isomer of 2-methyl propanal is (a) 2-butanone

(b) butanal

(c) 2-methyl propanol

(d) but 3 - ene - 2 - ol

2. Schiffs reagent gives pink colour with (a) acetone

(b) acetaldehyde

(c) ethyl alcohol

(d) methyl acetate

3. Isopropyl alcohol vapours with air over silver catalyst at 520 K give (a) tert.butyl alcohol

(b) acetaldehyde

(c) acetone

(d) 2-propanol

m o c . i a

I l A o s i L v l A a k . M w A w w N

4. Methyl ketones are usually characterised by (a) the Fehling’s solution

(b) the iodoform test

(c) the Schiff’s test

(d) the Tollen’s reagent

5. Which of the following compounds is oxidised to give ethyl methyl ketone? (a) 2-propanol

(b) 2-pentanone

(c) 1-butanol

(d) 2-butanol

6. Formaldehyde polymerises to give (a) paraldehyde 7. Tollen’s reagent is

N .A

(b) paraformaldehyde

R

(c) formalin

(d) formic acid

(a) ammoniacal cuprous chloride

(b) ammoniacal cuprous oxide

(c) ammoniacal silver nitrate

(d) ammoniacal silver chloride

8. When acetaldehyde is heated with Fehling solution, it gives a precipitate of (a) Cu2O

(b) CuO

(c) CuO + Cu2O

(d) Cu

9. The compound that does not undergo Cannizzaro reaction is (a) formaldehyde

(b) acetaldehyde

(c) benzaldehyde

(d) trimethyl acetaldehyde

10. The formation of cyanohydrin from a ketone is an example of (a) electrophilic addition

(b) nucleophilic addition

(c) nucleophilic substitution

(d) electrophilic subtitution

11. Hydrogenation of benzoyl chloride in the presernce of Pd on BaSO4 gives (a) phenol

(b) benzoic acid

(c) benzyl alcohol

(d) benzaldehyde

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www.kalvisolai.com 12. From which of the following, tertiary butyl alcohol is obtained by the action of methyl magnesium iodide? (a) HCHO

(b) CH3CHO

(c) CH3COCH3

(d) CO2

13. During reduction of aldehydes with hydrazine and C2H5ONa the product formed is (a) R–CH = N–NH (b) R–C = N 2

(c) R – C – NH2 || O

(d) R – CH3

14. Aldol is (a) 2-hydroxy butanol

(b) 3-hydroxy butanol

(c) 3-hydroxy butanal

(d) 2-hydroxy butanal

15. In the reduction of acetaldehyde using LiAlH4 the hydride ion acts as (a) electrophile

(b) nucleophile

(c) both (a) and (b)

16. Which of the following statement is wrong? (a) 2-pentanone and 3-pentanone are position isomers

(d) a free radical

m o c . i a

I l A o s i L v l A a k . M w A w w N

(b) aqueous solution of formaldehyde is known as formalin

(c) aldehydes and ketones undergo nucleophilic substitution (d) aldehydes act as reducing agents

17. A cyanohydrin of a compound X on hydrolysis gives lactic acid. THe X is (a) HCHO

(b) CH3CHO

(c) (CH3)2 CO

(d) C6H5CH2CHO

18. The IUPAC name of CH3 – C = CH – C – CH3 is | || CH3 O

N .A

(a) 4-methylpent-3-en-2-one

(b) 2-methylpent-3-en-2-one

(c) 3-methylpent-2-en-1one

(d) None of these

R

19. Which of the following does not give iodoform test? (a) aceto phenone

(b) benzophenone

(c) CH3 – CHOH | CH3

(d) CH3 – CH – CH2 CH2 – CH3 | OH

20. The compound which does not reduce Fehling solution is (a) formaldehyde

(b) acetaldehyde

(c) benzaldehyde

(d) propionaldehyde

21. CH3COCH3

Conc. H2SO4

The product is

(a) mesitylene

(b) mesityl oxide

(c) phorone

(d) paraldehyde M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

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Page : 19

www.kalvisolai.com 22. Which compound on strong oxidation gives propionic acid? (a) CH3 – CH – CH3 | OH

(b) CH3 – CO – CH3

(c)

CH3 | CH3 – C – OH | CH3

(d) CH3 CH2 CH2 OH

23. The compound used in the preparation of the tranquilizer, sulphonal is (a) acetone

(b) acetophenone

(c) isopropyl alcohol

(d) glycol distillation

24. Calcium acetate + calcium benzoate (a) benzophenone

gives

(b) benzaldehyde

(c) acetophenone

`

(d) phenyl benzoate

25. Bakelite is a product of reaction between

m o c . i a

(a) formaldehyde and NaOH

(b) phenol and methanal

(c) aniline and NaOH

(d) phenol and chloroform

I l o ACIDSLA 1 x 1= 1 19. CARBOXYLIC s i v l A a k . M w A w w N

Choose the correct answer.

1. Which of the following is least acidic (a) C2H5OH

(b) CH3COOH

(c) C6H5OH

(d) ClCH2COOH

2. Weakest acid among the following is (a) Acetic acid

N .A

(b) Phenol

(c) Water

(d) Acetylene

3. Ester formation involves the reaction of

R

(a) an aldehyde and a ketone (b) an alcohol with RMgX

(c) Two molecules of an acid with dehydrating agent (d) an acylhalide with an alcohol 4. Heating a mixture of sodium acetate and soda lime gives (a) methane

(b) ethane

(c) acetic acid

(d) oxalic acid

5. The acid which reduces Tollen’s reagent is (a) acetic acid

(b) benzoic acid

(c) formic acid

(d) oxalic acid

CH3 | 6. The IUPAC name of CH3 – CH2 – CH – COOH is (a) α - methyl butric acid

(b) 3-methyl butanoic acid

(c) 2-methyl butanoic acid

(d) Iso pentanoic acid

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

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Page : 20

www.kalvisolai.com 7. The Isomerism exhibited by CH3CH2COOH and CH3COOCH3 is (a) metamerism

(b) position

(c) chain

(d) functional

8. The acid that cannot be prepared by Grignard reagent (a) acetic acid

(b) formic acid

(c) butyric acid

(d) benzoic acid

9. Which order of arrangement is correct iterms of the strength of the acid (a) CH3–CH2COOH > CH3COOH < HCOOH < ClCH2COOH (b) ClCH2COOH < HCOOH < CH3COOH < CH3CH2COOH (c) CH3–CH2COOH < CH3COOH < HCOOH < ClCH2COOH (d) HCOOH > CH3CH2COOH < CH3COOH > ClCH2COOH 10. The compound which does not undergo intermolecular dehydration with P2O5 is (a) acetic acid

(b) formic acid

(c) propionic acid

(d) Butyric acid

H 11.

C=O

160oC

The product is

HO (a) CO + H2O

(b) HCOOH

(c) H2 + CO2

m o c . i a

(d) HCHO + O2

I l A o s i L v l A a k . M w A w w N

12. When chlorine is passed through acetic acid in presence of red P, it forms. (a) acetyl chloride

(b) Trichloro acetaldehyde

(c) Trichloro acetic acid

(d) Methyl chloride

13. Which of the following compounds will react with NaHCO3 solution to give sodium salt and CO2 ? (a) acetic acid

(b) n-hexanol

(c) phenol

(d) both (a) and (c)

14. When propanoic acid is treated with aqueous sodium - bicarbonatate, CO2 is liberated. The “C” of CO2 comes from (a) methyl group

N .A

(b) carboxylic acid group

(c) methylene group

R

(d) bicarbonate

15. Carboxylic acids are more acidic than phenol and alcohol because of (a) inter molecular hydrogen bonding

(b) formation of dimers

(c) highly acidic hydrogen

(d) greater resonance stabilisation of their conjugate base

16. Among the following the strongest acid is (a) ClCH2COOH

(b) Cl3CCOOH

(c) CH3COOH

(d) Cl2CHCOOH

17. Which of the following compound is optically active? (a) CH3CH2COOH

(b) HOOC–CH2–COOH

(c) CH3CH(OH)COOH

(d) Cl2CHCOOH

18. CH3CH(OH)COOH

H2O2/Fe2+

? The product is

(a) CH3COCOOH

(b) CH3CH2COOH

(c) CH3CHOHCHO

(d) HOOCCH2COOH

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

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Page : 21

www.kalvisolai.com 19. The compound found in some stony deposit in kidneys is (a) potassium oxalate

(b) oxalic acid

(c) potassium succinate

(d) calcium oxalate

20. Ethylene cyanide on hydrolysis using acid gives (a) oxalic acid

(b) succinic acid

(c) adipic acid

(d) propionic acid

20. ORGANIC NITROGEN COMPOUNDS 3 x 1= 3 Choose the correct answer 1. Bromo ethane reacts with silver nitrite to give (a) C2H5NO2

(b) C2H5–O–NO

(c) C2H5Ag + NaBr

(d) C2H5NC

O 2. The isomerism exhibited by CH3 – CH2 – N (a) position

and CH3 CH2 – O – N = O is O (c) functional (d) tautomerism

(b) chain

m o c . i a

3. In nitro alkanes –NO2 group is converted to – NH2 group by the reaction with (a) Sn/HCl

I l A o s i L v l A a k . M w A w w N

(b) Zn dust

(c) Zn/NH4Cl

(d) Zn/NaOH

4. When nitromethane is reduced with Zn dust + NH4Cl in neutral medium, we get (a) CH3NH2 (c) CH3NHOH

(b) C2H5NH2

(d) C2H5COOH

5. The compound that is most reactive towards electrophilic nitration is (a) Toluene

(b) benzene

(c) benzoic acid

(d) nitrobenzene

N .A

6. Nitromethane condenses with acetaldehyde to give (a) nitro propane

(b) 1-nitro-2-propanol

(c) 2-nitro-1-propanol

R

(d) 3-nitro propanol

7. Which of the following compounds has the smell of bitter almonds? (a) aniline (c) benzene sulphonic acid

(b) nitro methane (d) nitrobenzene

8. Nitration of nitrobenzene results in (a) o-dinitro benzene

(b) 1,3,5-trinitro benzene

(c) p-dinitro benzene

(d) m-dinitro benzene

9. Nitrobenzene on electrolytic reduction in con. sulphuric acid, the intermediate formed is (a) C6H5NH – NHC6H5

(b) C6H5 – NHOH

(c) C6H5 – N = N – C6H5

(d) C6H5.HSO4

10. Electrophile used in the nitration of benzene is (a) hydronium ion

(b) sulphonic acid

(c) nitronium ion

(d) bromide ion

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

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Page : 22

www.kalvisolai.com 11. The reduction of CH3 – CH2 – C = N with sodium and alcohol results in the formation of (a) CH3 – CH– CH3

(b) CH3 – CH2 – CH2 – OH + N2

NH2 (c) CH3 – CH2 – CH2 – NH2

(d) CH3 – CH2 – NH2

12. The basic character of amines is due to the (a) tetrahedral structure (b) presence of nitrogen atom (c) lone pair of electrons on nitrogen atom (d) high electronegativity of nitrogen 13. The organic compound that undergoes carbylamine reaction is (a) (C2H5)2NH

(b) C2H5NH2

(c) (C2H5)3N

(d) (C2H5)4 N+ I–

14. Primary amine acts as (a) Electrophile

(b) lewis base

(c) Lewis acid

(d) Free radical

m o c . i a

I l A o s i L v l A a k . M w A w w N

15. Oxidation of aniline with acidified potassium dichromate gives (a) p-benzo quinone (c) benzaldehyde

(b) benzoic acid

(d) benzyl alcohol

16. Which one of the following is a secondary amine? (a) aniline

(b) diphenyl amine

(c) sec.butylamine 17. C6H5NH2

(d) tert.butylamine

NaNO 2/HCl

(a) C6H5Cl

N .A

X. Identify X.

(b) C6H5NHOH

R

(c) C6H5N2Cl

(d) C6H5OH

18. Which of the following will not undergo diazotisation? (a) m-toluidine

(b) aniline

(c) p-amino

(d) benzyl amine

19. Anilin differs from ethylamine by the reaction with (a) metallic sodium (b) an alkyl halide (c) chloroform and caustic potash (d) nitrous acid 20. When aqueous solution of benzene diazonium chloride is boiled the product formed is (a) benzyl alcohol

(b) benzene + N2

(c) phenol

(d) phenyl hydroxylamine M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

R.ANNAMALAI

Page : 23

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2 x 1= 2

21. BIOMOLECULES Choose the correct answer. 1. Which is a mono saccharide among the following (a) Sucrose

(b) Cellulose

(c) Maltose

(d) Glucose

2. Identify the reducing sugar. (a) Sucrose

(b) Cellulose

(c) Starch

(d) Glucose

3. Sucrose is not (a) a di saccharide

(b) a non - reducing sugar

(c) hydrolysed to only glucose

(d) hydrolysed to glucose & fructose

4. Sucrose contains glucose and fructose linked by (a) C1 – C1

(b) C1 – C2

(c) C1 – C4

(d) C1 – C6

5. Glucose is not oxidised to gluconic acid by (a) Br2/H2O

(b) Fehling solutions

(c) Tollen’s reagent

6. Inversion of sucrose refers to

(d) Conc. HNO3

m o c . i a

(a) oxidation of sucrose

(b) reduction of sucrose

(c) hydrolysis of sucrose to glucose and fructose

(d) polymerisation of sucrose

I l A o s i L v l A a k . M w A w w N

7. Glucose forms __________with acetic anhydride and sodium acetate. (a) di acetate

(b) tetra acetate

(c) penta acetate

(d) hexa acetate

8. The amino acid without chiral carbon is (a) Glysine

(b) Alanine

(c) Proline

(d) Thyrosine

9. The building block of proteins are (a) α-hydroxy acids

(b) α-amino acids

N .A

(c) β-hydroxy acids

(d) β-amino acids

10. Which is not true of amino acid? (a) amino acid forms Z witter ion

(b) has isoelectric point

(c) dual behaviours

(d) amino acid is insoluble in NaOH solution

R

11. Two amino acids say A, B - react to give (a) two dipeptides

(b) three dipeptides

(c) four dipeptides

(d) only one

12. A di peptide does not have (a) two peptide units

(b) portions of two amino acids

(c) an amido group

(d) salt like structure

13. Proteins are not sensitive to (a) acids

(b) bases

(c) elevated temperature

(d) water

14. Denaturation does not involve (a) breaking up of H - bonding in proteins (b) the loss of biological action of enzyme (c) the loss of secondary stucture (d) loss of primary structure of proteins M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

R.ANNAMALAI

Page : 24

www.kalvisolai.com 15. Specificity of enzyme is due to (a) the sequence of amino acids

(b) secondary structure

(c) tertiary structure

(d) all of the above

16. Ultimate products of hydrolysis of proteins is (a) aniline

(b) aliphatic acid

(c) amino acid

(d)aromatic acid

17. Proteins are (a) polypeptides

(b) polyacids

(c) poly phenols

(d) poly esters

18. Which of the following contains a lipid? (a) starch

(b) mineral oil

(c) edible oil

(d) peptide

19. Which among the following contains triglyceride? (a) Wax

(b) Cooking oil

(c) Essential oil

(d) Albumin

20. Which contains a long chain ester? (a) wax

(b) cooking oil

(c) turpentine oil

(d) cellulose

21. An example of a fatty acid obtained from a cooking oil is (a) acetic acid

m o c . i a

(b) stearic acid

(c) benzoic acid

22. Which is not a saturated fatty acid? (a) Palmitic acid

I l A o s i L v l A a k . M w A w w N (b) Stearic acid

(c) Olei acid

23. Alkaline hydrolysis of cooking oil gives (a) soap

(d) oxalic acid

(b) glycerol

(c) fatty acid

(d) Glyceric acid

(d) both (a) and (b)

24. Hair and nail contains (a) cellulose

(b) fat

(c) keratin

(d) lipid

25. Important constituent of cell wall is (a) lipid

N .A

(b) cellulose

R

(c) protein

(d) vitamin

ALL THE BEST “ All the Glitters are not Gold “”

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

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Page : 25

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HIGHER SECONDARY SECOND YEAR Chemistry March - 2006 O 1. The isomerism exhibited by CH3- CH2- N and CH3- CH2- O - N=O is O a) position b) chian c) functional d) tautomerism 2. Which of the following nitro - compounds behave as an acid in the presence of strong alkali? a) Primary

b) secondary

c) tertiary

d) both (a) and (b)

3. Conversion of diazonium chloride to chlorobenzene is called a) Sandmeyar’s reaction

b) Stephan’s reaction

c) Gomberg reaction

c) schotten - Baumann reaction

4. Proteins are a) polypeptides

b) polyacids

c) polyphenols

d) polyesters

5. Mixture of equal molecules of D (+) glucose D (-) fructose in called a) fruit sugar

b) invert sugar

c) cane sugar

m o c

d) non-sugar

I A s i L v l A a k . M w A ww N N A . R . i a ol

6. Oxidation of glycerol with bismuth nitrate gives a) meso-oxalic acid

b) glyceric acid

c) tartronic acid

d) both (b) and (c)

7. According to lewis concept of acid and bases, ethers are a) neutral

b) acidic

c) basic

d) amphoteric

8. The compound mixed with ethanol to serve as substitute for petrol is a) methoxy methane 9. Aldol is

b) ethoxy ethane

a) 2 - hydroxy butanol

a) CH3COCOOH

d) ethanal

b) 3-hydroxy butanol

c) 3-hydroxy butanal

10. CH3CH(OH)COOH

c) methanol

d) 2-hydroxy butane

H2O2/Fe

2+

X. The X is

b) CH3CH2COOH

c) CH3CHOHCHO

d) CH2(COOH)2

11. For a reaction Ea = 0 and K=4.2 x 10 sec at 300 K, the value of K at 310 K will be. 5

a) 4.2x105 sec-1

-1

b) 8.4x105 sec-1

c) 8.4x10-5 sec-1

d) unpredictable

12. The iron catalyst used in the Haber’s process is poisoned by a) Pt

b) H2

c) H2S

d) As2O3

13. Curd is a colloidal solution of a) liquid in liquid

b) liquid in solid

c) solid in liquid

d) solid and liquid

14. An emulsion is a colloidal solution of a) two solids

b) two gases

c) two liquids

d) solid and liquid

15. When one coulomb of electricity is passed through an electrolytic solution, the mass deposited on the electrode is equal to a) Equivalent weight

b) molecular weight

c) Electrochemical equivalent

d) one gram R.ANNAMALAI M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, Page : 26 DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

www.kalvisolai.com 16. In a simple cubic cell, each point on a corner is shared by a) One unit cell

b) two unit cells

c) eight unit cells

17. The change of entropy for the process H2O(liq) 373K is

d) four unit cells

H2O (vap) involving Δ H(vap) = 40850Jmol-1 at

a) 120 J mol-1 K-1

b) 9.1 x 10-3 J mol-1 K-1

c) 109.52 J mol-1 K-1

d) 9.1 x 10-4 J mol-1 K-1

18. Which of the following does not result in an increase in the entropy? a) Rusting of iron

b) crystallization of sucrose from solution

c) Vaporization of camphor

d) conversion of ice to water

19. For the homogenous gas reaction at 600K, 4NH3(g) + 5O2(g) constant Kc has the unit a) mol dm-3

b) (mol dm-3)-1

20. 2H2O(g) + 2Cl2(g)

c) (mol dm-3)10

4NO(g) + 6H2O(g) the equilibrium d) (mol dm-3)9

4 HCl(g) + 5O2(g)

a) KP = KC

b) KP > KC

c) KP < KC

d) KP = KC= 0

m o c . i a

21. The transition element with the lowest atomic number is a) Scandium

I l A o s i L v l A a k . M w A ww N b) titanium

c) zinc

d) lanthanum

22. The elements in which extra electron enter (n-2)f orbital are a) s-block elements

b) p-block elements

c) d-block elements

d) f-block elements

23. The isotope used as a power source in long mission space probes is a) U-235

b) Pu-235

c) Pu-238

d) U-238

24. The type of isomerism found in the complexes (Pt (NH3)4 [CuCl4] and (Cu(NH3)4 [PtCl4] a) ionization isomeirsm c) linkage isomerism

N .A

b) co-ordination isomerism

R

d) ligand isomerism

25. After 24 hours 0.125g of the initial quantity of 1g of a radioactive isotope is left out. The half - life period is a) 24 hours

b) 12 hours

c) 8 hours

d) 16 hours

26. Dual character of an electron was explained by a) Bohr

b) Heisenberg

c) De Broglie

d) Pauli

27. The momentum of a particle which has De Broglie wavelength of 1Ao ( h = 6.626 x 10-34 Kgm2s-1) is a) 6.66 x 10-23 Kg ms-1

b) 6.66 x 10-24 Kg ms-1

c) 6.66 x 10-34 Kg ms-1

d) 66.6 x 10-23 Kg ms-1

28. The order of ionization energy is a) s < p < d < f

b) s > p > d > f

c) s > d > p > f

d) s < d < p < f

29. The general electronic configuration of carbon family is a) ns2 np2

b) ns2 np3

c) ns2 np1

d) ns2 np4

30. Which of the following compounds will not positive chromyl chloride test? a) Cu Cl2

b) C6H5Cl R.ANNAMALAI

c) Zn Cl2

d) HgCl2

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Page : 27

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HIGHER SECONDARY SECOND YEAR Chemistry June - 2006 1. Ethylene diamine forms glycol with a) nitrous acid

b) Na2Co3 solution

c) NaHCO3 solution

d) Bayer’s reagent

2. When ethers are exposed to air for a long time, they form a) peroxides

b) halides

c) oxides

d) superoxides

3. The isomerism exhibited 1 propanal and methoxy ethane is a) chain

b) position

c) functional

d) metamerism

4. The compound that does not answer idofom test is a) acetophenone

b) isopropyl alcohol

c) 2-pentanol

d) benzophenone

5. The compound found as stony deposits in kidneys is a) Potassium Oxalate

b) Oxalic acid

c) Potassium Succinate

d) calcium oxalate

m o c . i a

I l A o s i L v l A a k . M w A ww N

6. Semiconductors which exhibit conductivity due to the flow of excess negatively charged electron are called a) Super conductors

b) n-type semiconductors

c) p-type semicondictors

d) insulators

7. The amount of heat exchanged with the surrounding at constant temperature and pressure is called a) Δ E

b) Δ H

c) Δ S

d) Δ G

8. If Δ G of a reaction is negative, the change is a) spontaneous

N .A

b) non - spontaneous

c) reversible

9. For the homogenous gaseous reaction at 600K 4NH3(g) + 5O2(g) equilibrium constant Kc has the unit a) (mol dm-3)-1

R

b) mol dm-3

c) (mol dm-3)-4

d) none of these 4NO(g) + 6H2O(g), the d) (mol dm-3)-2

10. If the equilibrium constant for the formation of a product is 25, the equilibrium constant for the decomposition of the same product is 1 25 11. De Broglie equation is a) 25

b)

a) λ = mv / h

c) 5 b)

λ = hmv

d) 625 c) λ = hv / m

d) λ = h / mv

12. The bond order of nitrogen molecule is a) 1

b) 2

c) 3

d) 4

13. Effective nuclear charge Z* can be calculated using the formula a) Z* = Z - S

b) Z* = Z + S

c) Z* = S - Z

d) Z = Z* - S

14. The metalloid among the following is a) Pb

b) P

c) Ge

d) Sn

15. The chemical composition of slag formed during the smelting process in the extraction of copper is a) Cu2O + FeS

b) Fe SiO3

R.ANNAMALAI

c) Cu Fe S2

d) Cu2S + FeO

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 28

www.kalvisolai.com 16. Organic compounds that does not undergo diazotization is a) m - toluidine

b) aniline

c) p - aminophenol

d) benzyl amine

17. The intermediate formed on electrolytic reduction of nitrobenzene in conc. H2SO4 is a) C5H5NH - NHC6H5

b) C6H5 - NHOH

c) C6H5 - N = N - C6H5

d) all of these

18. The compound that does not show tautomerism is a) Nitrobenzene

b) nitro-methane

c) nitro-ethane

d) 2-nitropropane

19. The reducing sugar is a) sucrose

b) cellulose

c) starch

d) glucose

c) proline

d) tyrosine

20. The amino acid without chiral carbon is a) glycine

b) alanine

21. The half - life period of a first order reaction is 10 minutes. The rate constant is a) 6.93 x 102min-1

b) 0.693 x 10-2min-1

c) 6.932 x 10-2min-1

d) 69.3 x 10-1min-1

22. Tyndall’s effect is not observed in a) emulsions

m o c . i a

I l A o s i L v l A a k . M w A ww N b) colloidal solutions

c) true solutions

d) none of these

23. Decomposition of hydrogen peroxide is retarded in the presence of a) alcohol

b) glycerin

c) MnO2

d) MO

24. An example of gel is a) Paint

b) Pumice - Stone

c) Milk

d) curd

25. The indicator suitable for the titration of oxalic acid against NaOH is a) methyl orange

b) potassium permanganate

c) Phenophthalein

N .A

d) litmus

26. The transition element showing maximum oxidation state is

R

a) Sc

b) Ti

c) Os

d) Zn

27. Elements that form oxocations are a) lanthanides

b) actinides

c) noble gases

d) base metals

28. The radioactive lanthanide is a) terbium

b) lutetium

c) promethium

d) gadolinium

29. An example of ambidentate ligand is a) Cl

b) NO-2

c) H2O

d) NH2

30. Which is one of the following particles is used to bombard 13Al27 to give 15P30 and a neutron? a) α - particle

b) β - particle

c) neutron

d) proton

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

R.ANNAMALAI

Page : 29

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HIGHER SECONDARY SECOND YEAR Chemistry October - 2006 1. The metal used in galvansing iron sheets is a) chromium

b) zinc

c) copper

d) silver

2. Among the lanthanides elements, with the increase in atomic number the tendency to act as reducing agent a) increase

b) decrease

c) no change

d) none of these

3. The long mission space probes use __________ as power source a) Pu

b) U

c) Th

d) Pm

4. Which if the following is cationic complex? a) K4 [Fe(Cn)6

b) [Cu(NH3)6]Cl2

c) K3 [Cr(C2O4)3]

d) K3[Fe(CN)6]

5. Loss of - particle is equivalent to a) increase of one proton only

b) decrease of one neutron

c) loss of proton

d) both (a) and (b)

m o c . i a

I l A o s i L v l A a k . M w A ww N

6. The first order rate constant of a reaction is 0.0693 min-1. Then the required for 50% completion of a reaction is a) 10 min

b) 1 min

c) 100 min

d) 50 min

7. In case of physical adsorption, there is desorption when a) Temperature increase

b) Temperature decrease

c) Pressure increase

d) concentration increase

8. Smoke is a colloidal solution of a) gas in solid

N .A

b) solid in gas

c) gas in liquid

d) liquid in gas

9. Colloidal medicine are more effective because a) they are clean

R

c) the germs move towards them

b) they are easy to prepare d) the are easily assimilated and adsorbed

10. When sodium acetate is added to a solution of acetic acid, the degree of ionization of acetic acid a) increases

b) decrease

c) does not change

d) becomes unity

11. The nitro group can be reduced to primary amino group by a) Sn/con.Hcl

b) Zn dust

c) Zn/NH4Cl

d) Zn/NaOH

12. The organic compound that undergoes carbylamine reaction is a) (C2H5)2NH

b) C2H5NH2

c) (C2H5)3N

d) (C2H5)4N+I-

13. The nitrogen compound used in the preparation of sulpha drugs is a) methylamine

b) nitromethane

c) amino benzene

d) nitrobenzene

c) phosphoric acid

d) all of these

c) amino acid

d) aromatic acid

14. Nucleic acid is made up of a) an organic base

b) sugar unit

15. Ultimate product of hydrolysis of protein is a) aniline

b) aliphatic acid R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 30

www.kalvisolai.com 16. The circumference of the circular orbit of electron is an integral multiple of its a) frequency

b) momentum

c) mass

d) wavelength

17. The nature of hybridization in IF7 molecule is a) Sp2d2

b) Sp3d4

c) Sp3d3

d) sp2d4

18. On moving down a group, the radius of an ion a) decreases

b) increase

c) first increases and then decreases

d) remains a constant

19. The toxin element of boron family is a) boron

b) indium

c) thallium

d) gallium

20. The general outer electronic configuration of d block element is a) (n - 1) d1-10

b) (n - 1) d1-10 ns1-2

c) (n - 1) d10 ns1-2

d) (n - 1)d5 ns1

21. The crystal structure of CsCl is a) simple cube

b) face - centred cube

c) body - centred cube

d) edge centred cube

22. Change in Gibbs free energy is given by

m o c . i a

I l A o s i L v l A a k . M w A ww N

a) Δ G = Δ H + T Δ S

b) Δ G = Δ H -T Δ S

c) Δ G = Δ H. T Δ S

d) none of these

23. For the reaction constant 2Cl(g) a) +, -

Cl2(g) the signs of Δ H and Δ S are respectively.

b) +, +

c) -, -

d) -, +

24. If the equilibrium constants of the reactions 2A a) K1=2K2

b) K1= 1/K2

N .A

B is K1and B

c) K1 = ( K2)

2

2A is K2, then

d) K1= (1/K1)

2

25. When Δ ng in a homogeneous gaseous equilibrium is positive, then a) Kp = Kc

b) Kp < Kc

R

c) Kp > Kc

d) Kp = Kc / 2

26. The characteristic odour of lower phenols is _________ a) carbolic acid

b) fruity

c) oil of bitter almonds

b) inert

c) oxidizing

d) rotten fish

27. Oxygen atom of ether is a) Very active

d) replaceable

28. Diethyl ether behaves as a a) Lewis acid

b) lewis base

c) neutral compound

d) bronsted acid

29. The formation of a cyanohydrins with a ketone is example of a) electrophilic substitution

b) nucleophilic addition

c) nuclerophilic substitution

d) electrophilic addition

30. The isomerism exhibited by CH3CH2COOH and CH3COOCH3 is a) metamerism

b) functional isomerism

c) chain isomerism

d) position isomerism

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 31

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HIGHER SECONDARY SECOND YEAR Chemistry MARCH-2007 1. Aniline differs from ethylamine in its reaction with a) CH3 I

b) CHCl3 and caustic KOH

b) HNO2

d) CH3 COCl

2. The compound most reactive towards electrophilic nitration is a) Methyl benzene

b) Benzene

c) Benzoic acid

d) Nitrobenzene.

3. Nitro-acinitro tautomerism is exhibited by a) nitromethane

b) nitrobenzene

c) chloropicrin

d) o-toluidine

4. The reducing sugar among the following is a) sucrose

b) cellulose

c) glucose

d) starch

5. Which is not true of amino acid? a) It forms Zwitterion

b) Has isoelectric point

c) Dual behaviour

d) Insoluble in NaOH solution

m o c . i a

I l A o s i L v l A a k . M w A ww N

6. The compound that reacts the fastest with Lucas reagent is a) 1-butanol

b) 2-butanol

c) 1-propanol

d) 2-methyl -2-propanol.

7. According to Lewis concept of acids and bases, ethers are a) acidic

b) basic

c) neutral

d) amphoteric

8. Zeisel’s method of detection and estimation of alkoxy group in alkaloids involves the reaction of ether with a) HI

b) Cl2

N .A c) PCl5

d) AlCl3

9. Schiff’s reagent gives pink colour with

R

a) acetone

b) acetaldehyde

c) ethanol

d) ether.

10. The acid that cannot be prepared from Grignard reagent is a) Formic acid

b) Acetic acid

c) propionic acid

d) Benzoic acid

11. 50% of a fist order reaction is completed in 20 minutes. The time required for 75% completion is a) 60 minutes

b) 10 minutes

c) 40 minutes

d) 80 minutes

12. Colloids are purified by a) precipitation

b) coagulation

c) dialysis

d) filtration

13. In case of physical adsorption, there is desorption when a) temperature decreases

b) temperature increases

c) pressure increases

d) concentration increases

14. Fog is a colloidal solution of a) liquid in gas

b) gas in Liquid

c) gas in solid

d) solid in gas.

15. The indicator used in the titration of ammonium hydroxide with hydrochloric aicd is a) KMnO

b) Methyl oranre R.ANNAMALAI

c) phenolphthalein

d) Litmus.

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Page : 32

www.kalvisolai.com 16. An ion leaves its regular site and occupies a position in the space between the lattice sites. This defect is called as a) Schottky defect

b) Frenkal defect

c) Impurity defect

d) Vacancy defect

17. When a liquid boils, there is a) an increase in entropy

b) a decrease in entropy

c) an increase in heat of vaporisation

d) an increase in free energy

18. The amount of heat exchanged with the surroundings at constant pressure is called a) Δ E

b) Δ H

c) Δ S

19. In the reversible reaction 2HI a) greater than kc

d) Δ G H2 + I2, Kp is

b) less then kc

c) equal to kc

d) zero

20. Which of the following gaseous equlibria is favoured by increase temperature ? a) N2O 4

2NO2; Δ H =+59 kJ mol-1

b) N2+ 3H2

2NH3; Δ H =-22 k cal mol-1

c) 2SO2+ O2

2SO3; Δ H =-47 k cal mol-1

m o c . i a

d) Both (b) and (c)

I l A o s i L v l A a k . M w A ww N

21. Bordeaux mixture contanins a) AgNO3+HNO3

b) ZnSO4+H2SO4

c) CuSO4+Ca(OH)2

22. The compound used in gas lamp meterial is a) MnO2

b) CeO2

c) N2O5

d) KMnO4+HCl

d) Fe2O3

23. The radioactive lanthanide is a) Gadolinium

b) Lutetium

c) promethium

d) Cerium

24. An example of a chelating ligand is a) chloro

N .A

b) Bromo

25. Radioactivity is due to

R

d) NO2-

c) en

a) Stable electronic confiuration

b) stable nucleus

c) unstable nucleus

d) unstable elctronic configuration.

26. Which of the particles having same kinetic enargy, would have the maximum de Brogile de wavelength. a) Proton

b) neutron

c) α particle

d) β particle

27. Inter-molecular hydrogen bonding is present in a) HF

b) H2o

c) ethanol

d) all of these

28. The scale which is based on an empirical realition between the energy of a bond and the electronegativities of bonded atoms is that of a) Pauling

b) Mulliken

d) Sanderson

d) Alfred Rochow.

29. An element is burnt in limited supply of air to given oxide A which on treatment with water gives an acld B. Acid B on hearting gives and C which gives yellow prectipilite with silver nitatate Solution. Oxide A is a) P2O3

b) SO2

c) CO2

d) NO2

30. The ion with maximum number of unpaired electons is a) Mg2+

b) Ti3+ R.ANNAMALAI

c) V3+

d) Fe2+

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 33

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HIGHER SECONDARY SECOND YEAR Chemistry JUNE-2007 1. Nitromethane on condensation with acetaldehyde gives a) 1-nitropropane

b) 1-nitro-2-propanol

c) 2- nitro -1-propanol

d) 3- nitropropanol

2. The basic character of amines is due to the a) tetrahedral structure

b) presence of nitrogen atom

c)electronegativity of nitrogen

d) presence of lone pair of electrons.

3. Which of the following compounds has the smell of bitter almonds? a) Aniline

b) Nitromethane

c) Benzene sulphonic acid

d) Nitrobenzene

4. Sucrose contains glucose and fructose linked by a) C1-C1 carbon

b) C1-C2 carbon

c) C1-C4 carbon

m o c . i a

5.The building blocks of proteins are

d) C1-C6 carbon

I l A o s i L v l A a k . M w A ww N

a) α -hydroxy acid

b) α -amino acid

c) β -hydroxy acid

d) β-amino acid

6. The compound which reacts fastest with Lucas reagent is a) butan -1-ol

b) butan-2-ol

c) 2-methyl-1- propanol

d) 2-methyl-2- propanol.

7. According to Lewis concept of acids and bases, ethers are a) acidic

b) basic

c) neutral

N .A

d) amphotreic.

8. The ether used in perfumery is a) dithyl ether

b) dimethyl ether

c) methyl phenyl ether

d) diphenyl ether

9. Tertiary butyl alcohol can be prepared by treating methyl magnesium iodide with

R

a) formaldehyde ( HCHO )

b) acetaldehyde ( CH3CHO )

c) acctone ( CH3COCH3 )

d) carbon dixdde ( CO2 )

10. The strongest acid among the following is a) Cl CH2 COOH

b) Cl3 C COOH

c) CH3COOH

d) Cl2 CH COOH

11. Hydrolysis of an ester by dilute HCI is an example for a) zero order rection

b) first order rection

c) pseudo - first order rection

d) second order rection

12.Colloidal modicines are more effective because a) they are clean

b) they are aesy to prepare

c) the germs move towards them

d) they are easily assimilated and absorbed

13. Which type of colloid is a sol? a) Solid in liquid

b) liquid in solid

c) Solid in Solid

d) Gas in Solid

14. The platinum catalyst used in the oxidation of SO2 by contact process is poisoned by a) As2O3

b) V2O5 R.ANNAMALAI

c) Fe2O3

d) CuCl2.

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 34

www.kalvisolai.com 15. If 0.2 ampere can deposit 0.1978 g of copper in 50 minutes, how much of copper will be deposited by 600 coulombs? a) 19.78 g

b) 1.978 g

c) 0.1978 g

d) 197.8 g.

16. In a simple cubic cell, each point in a corner is shared by a) one unit cell

b) two unit cells

c) four unit cells

d) eight unit cells.

17. When a liquid boils, there is a) an increase in entropy

b) a decrease in entropy

c) an increase in free energy

d) an increase in heat of vaporisation.

18. The entropy change involved in the process of H2O (s) involving Δ H fusion = 6008 J mol-1 is a) 22.007J mol-1 K-1

b) 22.007J mol K-1

c) 220.07 J mol-1 K-1

d) 2.2007 J mol K-1

H2O (l) at 00c and 1atm pressure

19. In an endothermic equilibrium reaction. if K1 and K2 are the equilibrium constants at T1 and T2 temperatures repectivly and if T2 is greater than T1 than a) K1 < K2

b) K1 > K2

c) K1 = K2

m o c . i a

d) none of these.

I l A o s i L v l A a k . M w A ww N

20. The maximum yield of ammonia by Haber’s process is a) 78 %

b) 97%

c) 37%

d) 89%

21. K2Cr2O7 reacts with KI and dilute sulphuric acid and liberates a) O2

b) I2

c) H2

d) SO2

22. The oxide used in gas lamp material is a) MnO2

b) N2O5

c) CeO2

d) Fe2O3

23. Radioactive element of lanthanide is a) Cerium

N .A

b) Promethium

c) Gadolinium

d) Lutetium.

24. In [Fe(CN)6]-4 the central metal ion is a) Fe

R

b) Fe

+2

c) Fe+3

d) (CN)-

25. When 7N15 is bombarded with a proton it gives 6C12 and a) α -paeticle

b) β-particle

c) neutron

d) proton.

26. The hybridisation involved in XeF6 is a) sp3 d3

b) sp3 d2

c) sp3 d

d) sp3

27.Intramolecular hydrogen bonding is present in a) m- nitrophenol

b) o- nitrophenol

c) p- nitrophenol

d) none of these.

28. When XA>>XB, A-B boud is a) polar covalent

b) non- poar covallent

c) ionic

d)metallic.

29. Which of the following does not belong to group 14? a) C

b) Si

c) Ga

d) pb.

30. The transition element with the lowest atomic number is a) Zn

b) Sc

c) Ti

R.ANNAMALAI

d) La.

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Page : 35

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HIGHER SECONDARY SECOND YEAR Chemistry SEPTEMER-2007 1. The colour of purple of cassius is a) purple

b) blue

c) bluish green

d) apple green

2. ___________ form oxocations. a) Lanthanides

b) Actinides

c) Noble gases

d) Alkali metals.

c) plate metals

d) Actinides.

3. Alloys of Lanthanides are called as a) Misch metals

b) metallotds

4. In [FeII(CN)6]4- the central metal ion is a) Fe

b) Fe+2

c) Fe+3

d) (CN)-

5. Which one of the following particles is used to bombard 13 Al 27 to give 15 P 30 and a neutron? a) α - particle

b) Deuteron

c) proton

d) Neutron.

6. The sum of the powers of the concentration terms that occur in the rate equatic is called a) molecularity

b) order

c) rate

I l A o s i L v l A a k . M w A ww N

7. The phenomenon of Tyndall’s effect is not observed in a) emulsion

m o c . i a d) rate constant.

b) colloidal Solution

c) true solution

d) none of these.

8. Coconut charcoal has a great capacity of the ___________ of gases. a) adsorption

b) absorption

c) desorption

d) all of these.

9. Emulsifying agent is used for

a) precipitation of an emulsion

b) coagulation of an emulsion

c) stabilization of an emulsion

d) none of these.

N .A

10.When one coulmb of electricity is passed through an electrolyte solution the mass deposited on the electrode is equal to

R

a) equivalent weight

b) molecular weight

c) electrochemical equivalent

d) one gram

11. CCl3 NO2 is used as a) soil sterilizing

b) organic synthesis

c) good solvent

d) antioxidant

12. The organic compound that undergoes carbylamine reaction is a) (C2 H5)2 NH

b) C2 H5NH2

c) (C2 H5)3 N

d) (C2 H5)4 N+ I-

13. The reaction between benzene diazonium chloride and benzene in the presence of NaOH is a) perkin’s reaction

b) Gattermann’s reaction

c) Sandmeyer reaction

d) Gomberg- Bachmann reaction.

14. Glucose forms __________ with acetic anhydride and sodium acetate. a) di-acetate

b) tetra- acetate

c) penta- acetate

d) hexa - acetate

c) renaturation

d) none of these.

15. The precipitation of protein is called a) peptisation

b) denaturation

16. Dual character of an electron was explained by a) Bohr

b) Heisenberg R.ANNAMALAI

c) de Broglie

d) Pauli.

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 36

www.kalvisolai.com 17. Energy levels of molecular orbitals have been determined experimentally by a) Spectroscopic studies

b) x-ray diffraction

c) Crystallographic studies

d) none of these.

18. When XA>>XB, A-B boud is a) polar covalent

b) non- poar covallent

c) ionic

d) metallic.

19. The noble gases are unreactive because they a) have same number of electrons

b) have an atomicity of one

c) are gases with low density

d) have stable electronic configuration

20. Ferrochrome is an alloy of a) Cr, C, Fe, Ni

b) Cr, Co, Ni, C

c) Fe, Cr

d) Cr, Ni, Fe

21. The total number of atoms per unit cell in bcc is a) 1

b) 2

c) 3

d) 4

22. If Δ G for a reaction is negative, the change is a) spontaneous

b) non- spontaneous

a)

[O3]3

c) - , -

3O2 the value of Kc is

b)

. i a ol

Cl2(g) the signs of Δ H and Δ S respectively are

b) +, +

24. In a reaction 2O3

d) irreversible

I A s i L v l A a k . M w A ww N N A . R

23. For the reaction 2Cl(g) a) +, -

m o c

c) reversible

[O2]2

c)

d) -, +

[O2]3

d)

[O3]

[O3] [O3] [O2] [O2]2 25. In the synthesis of NH3 between N2 and H2 reaction the unit of Kp is a) lit2 mol-2

3

b) atm-2

2

c) lit atm-1

d) atm-1

26. A compound that reacts fastest with Lucas reagent is a) butan -1-ol

b) butan-2-ol

c) 2-methyl propan -1-ol

d) 2-methyl propan-2-ol

27. According to Lewis concept of acids and bases, ethers are a) neutral

b) acidic

c) basic

d) amphoteric.

28.Which among the follwing is a an unsymmetrical ether? a) C6H5-O-C6H5

b) C2H5-O-C2H5

c) CH3-O-CH3

d) C6H5-O-CH3

29. schiff’s reagent gives pink colour with a) acetone

b) acetaldehyde

c) ethyl alcohol

d) methyl acetate.

30. Which order of arrangement is correct in terms of the strength of the acid? a) CH3 CH2 COOH > CH3 COOH < HCOOH < ClCH2 COOH b) ClCH2 COOH < HCOOH < CH3 COOH < CH3 CH2 COOH c) CH3 CH2 COOH < CH3 COOH < HCOOH < ClCH2 COOH d) HCOOH > CH3 CH2 COOH < CH3 COOH > ClCH2 COOH

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 37

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HIGHER SECONDARY SECOND YEAR Chemistry MARCH - 2008 1. Silver obtained from silver coin is purified by fusion with a) AgNO3

b) HNO3

c) H2SO4

d) borax

2. Alloys of lanthanides are called as a) plate metals

b) actinides

c) misch- metals

d) metalloids

3. The common oxidation state of actinide is a) +2

b) +3

c) +4

d) +6

4. [FeF6]4- is paramagnetic because a) F-is a weaker ligand

b) F- is a stronger ligand

c) F- is a chelating ligand

d) F-is a flexidentate ligand.

5. In nuclear reaction __________ is / are balanced on both sides. a) mass

b) number of atoms

c) mass number

d) atomic number and mass number.

m o c . i a

I l A o s i L v l A a k . M w A ww N

6. Half-life period of a first order reaction is 20 min. The time taken for the completion of 99.9% of the reaction is a) 20 min

b) 2000 min

c) 250 sec

d) 200 min

7. The Tyndall effect is associated with colloidal particle due to a) scattering of light

b) presence of charge

c) diffusion of light

d) reflection of light

8. Colloids are purified by a) precipitation

N .A

b) coagulation

c) dialysis

d) filtration.

9. Which one of the following factors is false regarding catalyst?

R

a) samll quantity is enough

b) Initiate the reaction

c) Remains unchanged in mass and chemical composition

d) Specific in its action.

10. When pH of a solution is 2. the hydrogen ion concentration in moles litre-1 will be a) 1x10-12

b) 1x10-4

c) 1x10-7

d) 1x10-2

11. The -NO2 group in nitro-alkane is converted into-NH2 group by the reagent a) Zn / NH4Cl

b) Zn dust

c) Sn / HCl

d) Zn / NaOH.

12. The organic compound that undergoes carbylamine reaction is a) (C2 H5)2 NH

b) C2 H5NH2

c) (C2 H5)3 N

d) (C2 H5)4 N+ I-

13. Use of chloropicrin is as a) Explosive

b) Dye

c) Anaesthetic

d) Sterilizing agent.

14. The amino acid without chiral carbon is a) Glycine

b) Alanine

c) Proline

d) Tyrosine.

15. Sorbitol and Mannitol are a) isomers

b) polymers R.ANNAMALAI

c) epimers

d) dimers

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 38

www.kalvisolai.com 16.Hybridisation in SF6 molecule is a) sp3

b) sp3d2

c) sp3 d

d) sp3d3

17. In a molecule eight electrons are present in bonding molecluar orbital and four electrons are present in anti- bonding molecular orbital. Its bond order is a) 3

b) 4

c) 2.5

d) 2

18. The metal of having maximun electron affinity is a) sodium

b) calcium

c) gold

d) silver

19. Which of the following has the property of etching on glass? a) HI

b) HF

c) HBr

d) HCl

20. paramagnetism is the property of a) paired electrons

b) completely filled electronic sub- shells

c) unpaired electrons

d) completely vacant electronic sub- shells

21. An example for metaldeficiency defect is a) NaCl

b) AgCl

c) FeS

d) CsCl

22. If Δ G for a reaction is negative, the change is

m o c . i a

I l A o s i L v l A a k . M w A ww N

a) spontaneous

b) non- spontaneous

c) reversible

d) irreversible

23. Entropy (s) and the entropy change (Δ s) of a process a) are path functions

b) are state functions

c) are constants

d) have no values

24. Which one of the following has-negavtive value for Δ ng? a) H2 (g) + I2 (g)

2 HI (g)

b) PCl5 (g)

N .A

PCl3 (g) + Cl2 (g)

c) 3 H2 (g) + N2 (g)

R

d) 2 H2 O (g) + 2Cl2 (g)

2 NH3 (g) 4 HCl (g) + O2 (g)

25. State of a chemical equilibrium is a) dynamic

b) Stationary

c) both (a) & (b)

d) none of these

26. A compound that undergoes bromination easily is a) benzoic acid

b) benzene

c) phenol

d) toluene

27. Ether is formed when alkyl halide is treated with sodium alkoxide. The method is known as a) Hoffimann’s reaction

b) Williamson’s synthesis

c) Wurtz reaction

d) Kolbe’s reaction

28. When ether is exposed to air for some time, an explosive substance produced is a) peroxide

b) TNT

c) superoxide

d) gun cotton

29. Hydrogenation of benzoyl chloride in the presence of pd and BaSO4 gives a)phenol

b) benzoic acid

c) benzyl alcohol

d) benzaldehyde

30. Concentrated solution of sodium acetate on electrolysis gives a) ethane

b) propane R.ANNAMALAI

c) methane

d) butane

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 39

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HIGHER SECONDARY SECOND YEAR Chemistry JUNE - 2008 1. Which of the following is wrong statement regarding K2 Cr2 O7? a) Oxidising agent

b) Used in tanning dustry

c) Soluble in water

d) Reduces ferric sulphate to ferrous sulphate

2. The common oxidation state of lanthanides is a) +2

b) +1

c) +3

d) +4

3. Alloys of lanthanides are called as a) misch metals

b) metalloids

c) Plate metals

d) actindes

4. The co-ordination number of Cr(III) in [ Cr (H 2O) 4 Cl2 ] Cl. 2 H2O is a) 3

b) 4

c) 6

5. The reaction 5B8

d) 2

Be8 akes place due to

4

a) α -decay

b) β - decay

c) electron capture

d) positron decay

m o c . i a

6. In a first order reaction the concentration of the reactant is increased by 2 times. The rate of the reaction is increased by a) 2 times

I l A o s i L v l A a k . M w A ww N b) 4 times

c) 10 times

7. Colloidal medicines are more effective because a) they are clean

d) 6 times

b) they are easy to prepare

c) they are easily assimilated and adsorbed

d) the germs move towards them

8. Which one is correct factor that explains the increase of reaction by a catalyst? a) Shape selectivty

b) particle size

N .A

c) Increase of free energy

d) Lower of activation energy

9. The function of FeCl3 in the conversion of Fe (OH)3 precipitate into a colloid is a) peptising agent c) reducing agent

R

b) emulsifying agent

d) precipitating agent

10. Equivalent conductance of acetic acid at 250c is 80 ohm-1cm2(gram equivalent)-1 and at infinite dilution is 400 ohm-1 cm2 (gram equivalent)-1 The degree of dissociation is a) 1 11. C6H5NH2

b) 0.2

c) 0.1

NaNO2 / HCl 273 K

a) C6 H5 Cl

d) 0.3

X. X is

b) C6 H5 NHOH

c) C6 H5 N2 Cl

d) C6 H5 OH

12.Oil of mirbane is a) nitrobenzene

b) benzaldehyde

c) methyl salicylate

d) aspirin

13. Primary amine acts as a) electrophile

b) Lewis acid

c) free radical

d) Lewis base

14. Ultimate product of hydrolysis of proteins is a) anline

b) aliphatic acid R.ANNAMALAI

c) amino acid

d) aromatic acid.

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 40

www.kalvisolai.com 15. Inversion of sucrose refers to a) oxidation of sucrose

b) reduction of sucrose

c) sucrose to glucose and fructose

d) polymerisation of sucrose

313.6 , En= -34.84, n value is n2 a) 4 b) 3 c)2

16. En =

d) 1

17.water exists in liquid state. This is due to a)high boiling point

b)low boiling point

c)freezing point is zero

d) hydrogen bond.

18. Effective nuclear charge is given by the equation a) z * = z - s

b) z * = z + s

c) z * = s - z

d) z = z * - s

c) Al2(SO4)3

d) KI

19.the compound used to arrest the bleeding is a) K2SO4

b) potash alum

20. The number of unpaired electrons in, Ti3+ is 1. Its magnetic moment in BM is a)1.414

b) 2

c) 1.732

d) 3

m o c . i a

I l A o s i L v l A a k . M w A ww N

21. In Bragg’s equation n represents a) number of moles

b) Avogadro number

c) quantum number

d) order of reflection

22. Change in Gibbs free energy is given by a) Δ G = Δ H+T Δ S

b) Δ G= Δ H -T Δ S

c) Δ G = Δ H x T Δ S

a) Δ G= T Δ S + Δ H

23. H2O(l)

N .A

H2O(g). In this process the entropy

a) remains constant

b) decreases

R

c) increases

d) becomes zero

24. State of chemical equilibrium is a) dynamic

b) stationary

25. H2(g)+I2(g)

c) none of these

d) both (a) and (b)

2HI(g). The equilibrium constant Kc for this reaction is 16. Kp value is

1 b) 4 c) 64 16 26. The reaction of ethylene glycol with PI3 gives a)

a) ICH2 CH2I

d) 16

b) CH2 = CH2

c) CH2 = CHI

d) ICH = CHI

27. The number of ether isomers possible for C4 H10O is a) 7

b) 5

c) 4

d) 3

28. Oxygen atom of ether is a) more reactive

b) replaceable

c) oxidising

d) comparatively inert

29. The compound that does not reduce Fehling solution is a) formaldehyde

b) acetaldehyde

c) benzaldehyde

d) propionaldehyde

30. Ethylene dicyanide on hydrolysis gives a) oxalic acid

b) succinic acid

R.ANNAMALAI

c) adipic acid

d) propionic acid

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 41

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HIGHER SECONDARY SECOND YEAR Chemistry SEPTEMBER - 2008 1. The number of secondary alcoholic group in glycerol is a) 1

b) 2

c) 3

d) 0

2. When ethyl iodide is treated with dry silver oxide. It forms a) ethyl alcohol

b) diethyl ether

c) silver ethoxide

d) ethyl methyl ether

3. propanone is usually characterised by a) Fehling’s solution

b) Iodoform test

c) Schiff’s test

d) Tollen’s reagent

4. The compound used in the preparation of triphenyl methane dye is a) methanol

b) phenyl methanal

c phenyl methanol

d) ethanal

5. The acid that cannot be prepared by Grignard reagent is a) acetic acid

b) benzoic acid

c) formic acid

m o c . i a

6. An example of metal deficiency defect is a) NaCl

I l A o s i L v l A a k . M w A ww N

b) AgCl

c) CsCl

d) FeS

7. If Δ G for a reaction is negative, the change is a) spontaneous

d) butyric acid

b) non-spontaneous

c) reversible

d) irreversible

8. The entropy change for the process, water (liq) to water (vap) involving Δ H(vap) =40850 J mol-1 at 373K is a) 22.007J mol -1 K -1

b) 7.307J mol -1 K -1

c) 109.52J mol -1 K -1

d) 0.2287J K -1

N .A

9. In the reversible reaction 2HI a) greater than Kc

R

H2 + I2, Kp is

b) less than Kc

c) equal to Kc

d) zero

10. The optimum range of temperature used in contact process for the manufacture of SO3 is a) 4000C to 4500C c) 5000C to 5500C

b) 18000C to 27000C

d) 3500C to 4500C

11. Dual character of an electron was explained by a) Bohr

b) Heisenberg

c) de Broglie

d) Pauli

12. Inter- molecular hydrogen bonding is present in a)o-nitrophenol

b)salicylic acid

c) o- hydroxy benzaldehyde

d) hydrogen fluoride

13. Which among the following has higher electron affnity value? a) Fluorine

b) chlorine

c)bromine

d)iodine

c) PH3

d) H3 PO3

14.The compound used in smoke screen is a) PCl3

b) PCl5

15.The Catalyst used in the manufacture of polythene is a) V2O5

b) Fe R.ANNAMALAI

c) Mo

d) TiCl4.

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 42

www.kalvisolai.com 16. Primary amine acts as a) electrophile

b) lewis base

NaNO 2

17. C6 H5 NH2

HCl 0oC

a) C6 H5 Cl

c) Lewis acid

d) free radical

X. Identify X. b) C6 H5 NHOH

c) C6 H5 N2Cl

d) C6 H5 OH

18. Which of the following will not undergo Hofmann’s bromamide reaction? a) Ethanamide

b) Propanamide

c) Methanamide

d) Phenyl methanamide

19. Glucose is not oxidised to gluconic acid by a) Br2 / H2O

b) Fehling’s solution

c) Tollen’s reagent

d) Conc. HNO3

20. The optically inactive amino acid is a) glycine

b) alanine

c) proline

d) phenyl alanine

m o c . i a

21. Decomposition of nitrogen pentoxide CCl4 is an example for

I l A o s i L v l A a k . M w A ww N

a) second order reaction

b) third order reaction

c) zero order reaction

d) first order reaction

22. Fog is the colloidal solution of a) gas in liquid

b) liquid in gas

c) gas in solid

d) solid in gas

23. An example of lyophilic colloid is a) Sulphur in water

b) phosphorus in water

c) starch

d) all of these

24. Colloids are purified by a) precipitation

N .A

b) coagulation

R

c) dialysis

d) filtration

25. When 10-6 mole of a monobasic strong acid is dissolved in one litre of solvent,the pH of the solution is a) 6

b) 7

c) 4

d) less than 6

26.The correct electronic configuration of chromium is a) [Ar] 3d6 4s0

b) [Ar] 3d5 4s1

c) [Ar] 3d4 4s2

d) [Ar] 3d3 4s2 4p1

27. The maximum oxidation state exhibited by lanthanides is a) + 3

b) + 4

c) + 6

d) + 7

28. ThO2 is used in a) toys

b) tracer bullets

c) gas lamp materials

d) dyeing cotton

29. An example of bidentate chelating ligand is a) NO-2

b) NO-3

c) en

d) SO42-

30. Half -life period of a radioactive element is 1500 years. The value of disintegration constant in terms of seconds is a) 0.1465 x 10-10sec-1

b) 0.2465 x 10-10sec-1

c) 0.1465 x 10-8sec-1

d) 0.3645 x 10-10sec-1

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 43

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HIGHER SECONDARY SECOND YEAR Chemistry MARCH - 2009 1. When an aqueous solution of benzene diazonium chloride is boiled, the product formed is a) benzyl alcohol

b) benzene + N2

c) phenol

d) phenyl hydroxylamine

2. Oxidation of aniline with acidfied K2Cr2O7 gives a) p-benzoquinone

b) benzoic acid

c) benzaldehyde

d) benzyl alcohol

3. When among the following is a tertiary amine? a) (CH3)3 - C - NH2

b) CH3 - CH - NH - CH3 CH3 CH3

c) (CH3)2 - N - C2 H5

d) CH3 - CH2 - C - C2 H5 NH2

4. The reducing sugar among the following is a) sucrose b) cellulose c) glucose

m o c . i a

I l A o s i L v l A a k . M w A ww N

5. The amino acid without chiral carbon is a) Alanine b) Glycine

d) starch

c) proline

6. The active component of dynamite is a) kieselghur b) nitroglycerine

c) nitrbenzene

7. Anisole on bromination yields a) m- bromoanisole b) o-bromoanisole

d) trinitrotoluene

c) o-&p-bromoanisole

8. Diethyl ether can be decomposed with a) HI b) KMnO4 c) NaOH

N .A

d) Thyrosine

d) H2O

9. The compound that does not undergo cannizzaro reaction is a) formaldehyde b) benzaldehyde c) acetaldehyde

R

10. Which one of the following is least acidic? a) C2 H5 OH b) CH3 COOH

d) benzoic acid

d) trimethyl acetal dehyde

c) C6 H5 OH

d) ClCH2 COOH

11. The excess energy which a molecule possesses to become active is known as a) Kinetic energy b) potential energy c) activation energy d) threshold energy 12. In the reaction between oxalic acid and potassium permanganate, in the presence of dil. H2SO4 __________acts as an autocatalyst. a) K2SO4 b) MnSO4 c) MnO2 d) Mn2O3 13. In the case of physical adsorption, there is desorption when a) temperature increases b) temperature decreases c) pressure increases

d) concentration increases

14. The blue colour of the sky is due to a) Tyndall effect b) Brownian movement

c) electrophoresis

d) electro-osmosis

15. Faraday’s laws of electrolysis are related to a) atomic number of the cation

b) atomic number of the anion

c) equivalent weight of the electrolyte

d) speed of the cation

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 44

www.kalvisolai.com 16. The number of close neighbours in a body centred cubic lattice of identical sphere is a) 6

b) 4

c) 12

d) 8

17. All the naturally occurring processes proceed spontaneously in a direction which leads to a) decrease of entropy

b) increase in enthalpy

c) increase in free energy

d) decrease of free energy

18. The percentage efficiency of a heat engine that operates between 127oC and 27oC is a) 20%

b) 50%

c) 100%

d) 25%

19. For the homogeneous gas reaction at 600 K 4 NH3 (g) + 5 O2 (g)

4 NO (g) + 6 H2O (g)

the equilibrium constant Kc has the unit a) (mol dm-3)-1

b) (mol dm-3)

c) (mol dm -3)10

20. If the equilibrium constant of the reaction 2A reaction B 2A is K2, then a) K1=

1 K2

b) K1= 2 K2

d) (mol dm -3)-9

B is K1 and the equilibrium constant of the 1 K22

c) K1=

d) K2= (K1)2

m o c . i a

I l A o s i L v l A a k . M w A ww N

21. Which of the following ions will give colourless aqueous solution? a) Ni2+

b) Cu+

c) Cu2+

d) Fe2+

22. Maximum oxidation state exhibited by lanthanides is a) +1

b) +2

c) +3

d) +4

23. Which of the following is a radioactive lanthanide ? a) Pu

b) Ac

c) Th

d) Pr

24. Which one of the following is a cationic complex? a) K4 [ Fe (CN) 6 ]

N .A

b) [ Cu (NH3 ) 4 ]Cl2

c) K3 [ Cr (C2 O4 ) 3]

R

d) K3[ Fe (CN) 6]

25. Which one of the following particles is used to bombard 13 Al 27 to give 15 P 30 and a neutron? a) α -particle

b) proton

c) Neutron

d) Deutreon

26. The intramolecular hydrogen bonding is present in a) o-nitrophenol

b) m-nitrophenol

c) p-nitrophenol

d) p-aminophenol

27. The hybridisation in SO42- ion is a) sp3

b) sp3 d2

c) sp3 d

d) sp3 d3

28. The electron affinity of an atom is a) directly proportional to its size

b) inversely proportional to its size

c) independent of its size

d) none of these

29. An element which was burnt in limited supply of air to give oxide A, which on treatment with water gives an acid B. Acid B on heating gives acid C which gives yellow precipitate with AgNO3 solution. Compound A is a) SO3

b) NO2

c) P2O3

d) SO3

30. A metal which precipitates gold from its aurocyanide complex is a) Cr

b) Ag

c) Pt

R.ANNAMALAI

d) Zn

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 45

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HIGHER SECONDARY SECOND YEAR Chemistry JUNE - 2009 1. Compound which undergoes iodoform test is a) 1 - pentanol

b) 2 - pentanone

c) 3 - pentanone

d) pentanal

2. The preparation of diethyl ether by williamson’s synthesis is a/an a) nucleophilic addition reaction

b) electrophilic substitution reaction

c) electrophilic substitution reaction

d) nucleophilic substitution reaction

3. In the formation of oxonium salt when ethereal oxygen reacts with strong mineral acid is called a) electronation

b) protonation

c) deprotonation

d) dehydration

4. Which of the following compounds is oxidized to give ethyl methl ketone? a) 2 - propanol

b) 2 - pentanone

c) 1 - butanol

d) 2 - butanol

c) adipic acid

d) propionic acid

5. Ethylene dicyanide on hydrolysis using acid gives a) oxalic acid

b) succinic acid

m o c . i a

6. The size of the anion in Frenkel defect crystal is

I l A o s i L v l A a k . M w A ww N

a) larger than the cation

b) smaller than the cation

c) equal in size with cation

d) both are larger in size

7. When a liquid boils, there is a) an increase in entropy

b) a decrease in entropy

c) an increase in heat of vaporization

d) an increase in free energy

8. Change in Gibbs free energy is given by a) Δ G = Δ H + T Δ S

N .A

b) Δ G = Δ H -T Δ S

c) Δ G = Δ H x T Δ S

d) Δ G = Δ H / T Δ S

R

9. In the reversible reaction 2HI(g) a) greater than Kc

H2(g) + I2(g) Kp is

b) less than Kc

c) equal to Kc

d) 0

10. In the Haber process the yield of ammonia is greater a) at high pressure

b) at low pressure

c) at high temperature

d) in absence of catalyst

11. Dual character of an electron was explained by a) Bohr

b) Heisenberg

c) de Broglie

d) Pauli

c) 3

d) 4

12. Number of spherical nodes in 2s orbital is a) 1

b) 2

13. On moving down the group, the radius of an ion a) decrease

b) increase

c) no change

d) all of these

14. Which of the following shows negative oxidation state only? a) Br

b) F

c) Cl

d) I

15. The outer electronic configuration of chromium is a) 3d64s0

b) 3d54s1 R.ANNAMALAI

c) 3d44s2

d) 3d34s24p1

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 46

www.kalvisolai.com 16. Innirtoalkanes - NO2 group is converted to NH2 group by the reaction with a) Sn/HCl

b) Zn dust

c) Zn/NH4Cl

d) Zn/NaOH

17. The tertiary nitro compounds is a) 2-nitro propane

b) 1 - nitropropane

c) 1 - nitro-2, 2-dimathyl propane

d) 2-nitro, 2 - methlpropane

18. The intermediate formed in the nitration of benzene is a) Arrenium ion

b) Carbon ion

c) Oxonium ion

d) Nitrite ion

19. Inversion of sucrose refers to a) oxidation of sucrose

b) reduction of sucrose

c) hydrolysis of sucrose to glucose and fructose

d) polymerization of sucrose

20. A dipeptide does not have a) two peptide units

b) portions of two amino acids

c) an amido group

d) salt like structure

m o c . i a

21. The sum of the powers of the concentration terms that occur in the rate equation is called a) molecularity

I l A o s i L v l A a k . M w A ww N b) order

c) rate

22. The phenomenon of Tyndall effect is not observed in a) emulsion

b) colloidal solution

d) rate constant

c) true solution

d) suspension

23. Catalyst used in Deacon’s method of manufacture of chlorine is a) NO

b) CuCl2

24. Argyrols is a) colloidal silver c) colloidal gold

c) Fe2O3

N .A

d) Ni

b) colloidal animony

d) milk magnesia

R

25. When sodium acetate is added to acetic acid the degree of ionisation of acid a) decrease

b) does not change

c) increase

d) becomes zero

26. The reagent which is added first in the separation of silver from silver coin a) conc.sulphuric acid

b) conc.hydrochloric acid

c) con.nitric acid

d) aquaregia

27. ________ forms (s) oxocation a) Lanthamide

b) Actinides

c) Noble gases

d) Alkali metals

28. ________ is the oxidation state of U in UF6 a) +6

b) +4

c) +3

d) +0

29. The coordination number of Nickel in the complex ion [NiCl4]2 - is a) +1

b) +4

c) +2

d) +6

30. Loss of a β - particle is equivalent to a) increase of one proton

b) decrese of one neutron only

c) both (a) and (b)

d) increase of one neutron only

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 47

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HIGHER SECONDARY SECOND YEAR Chemistry SEPTEMBER -2009 1. When phenol is distilled with zinc dust, it gives a) benzalddehyde

b) benzoic acid

c) toluene

d) benzene

2. Which one of the following ethers is used in perfumery? a) Dimethyl ether

b) Diethyl ether

c) Ethyl methyl ether

d) Methyl phenyl ether

3. When ethyl iodide is treated with dry silver oxide it forms a) Ethyl alcohol

b) Diethyl ether

c) silver methoxide

d) Ethyl methyl ether

4. Schiff’s reagent gives pink colour with a) acetone

b) acetaldehyde

c) ethanol

d) ether

5. The acid that cannot be prepared by Grignard reagent is a) acetic acid

b) butyric acid

c) formic acid

6. The total number of atoms per unit cell in bcc is a) 1

d) benzoic acid

m o c . i a

I l A o s i L v l A a k . M w A ww N

b) 2

c) 3

d) 4

7. Which of the following processes is always non-feasible? a) Δ H > 0, Δ S > 0

b) Δ H < 0, Δ S > 0

c) Δ H > 0, Δ S < 0

d) Δ H < 0, Δ S < 0

8. The net work obtained from a system is given by a) W + P Δ V

b) W - P Δ V

9. In the equilibrium N2 + 3 H2 process having

c) - W + P Δ V

2 NH3 The maximum yield of ammonia will be obtained with the

N .A

a) low pressure and high temperature

R

a) - W - P Δ V

b) low pressure and low temperature

c) high pressure and high temperature

d) high pressure and low temperature

10. The rate constant of the forward reverse reactions are 8 x 10-5 and 2 x 10-4 respectively. The value of Kc is a) 0.04

b) 0.02

11. de Broglie equation is mv a) λ= h b) λ = hmv

c) 0.2

d) 0.4 h d) λ= mv

hv c) λ= m

12. The hybridisation in CO32- ion is a) sp2

b) sp3

c) sp

d) sp3 d

13. Amongthe following which has higher electron affinity value? a) Fluorine

b) chlorine

c) Bromine

d) Iodine

14. An element which belongs to Group 14 is soft in nature, does not react with pure water, but dissolves, but dissolves in water containing dissolved air. Then the element is a) C

b) Ge

c) Pb

d) Ti

15. The correct outer electronic configuration of copper atom is a) 3d10 4s2

b) 3d10 4s1 R.ANNAMALAI

c) 3d9 4s2

d) 3d5 4s2

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 48

www.kalvisolai.com 16. Which one of the following will not undergo diazotisation? a) m-toluidine

b) Aniline

c) p-aminophenol

d) Benzylamine

17. Which one of the following compounds has the smel of bitter almonds? a) Aniline

b) Nitromethane

c) Benzene sulphonic acid

d) Nitrobenzene

18. The basic strength of amine is in the order of a) NH3 > CH3 NH2 > ( CH 3 ) 2 NH

b) ( CH 3 ) 2 NH > CH3 NH2 > NH3

c) CH3 NH2 > ( CH 3 ) 2 NH > NH3

d) NH3 > ( CH 3 ) 2 NH > CH3 NH2

19. A dipeptide does not have a) two peptide units

b) portions of two amino acids

c) an amido group

d) salt like structure

20. The important constituent of cell wall is a) liqid

b) cellulose

c) protein

d) vitamin

21. Reactions in which the reacting molecules react in more than one way yielding different set products are called

m o c . i a

a) consecutive reactions

b) parallel reactions

c) opposing reactions

d) chain reactions

I l A o s i L v l A a k . M w A ww N

22. Colloids are purified by a) precipitation

b) coagulation

c) dialysis

d) filtration

23. Decomposition of hydrogen peroxide is retarded in the presence of a) alcohol

b) glycerine

c) manganess dioxide

d) Molybdenum

24. The emulsifying agent used in O/W emulsion is a) long chain alcohol

b) lamp black

N .A

c) protein

d) glycerol

25. When sodium acetate is added to acetic acid, the degree of ionisation of acetic acid a) increase

b) decreases

R

c) does not change

d) becomes zero

26. The substance used in making ruby red glass and high class pottery is a) colloidal silver

b) purple of cassius

c) ruby silver

d) ruby copper

27.Alloys of lanthanidesare called a) Metalloids

b) plate metals

c) Actinides

d) Misch metals

28. According to Fajan’s rule decrease in size of Ln ion in Ln (OH)3. 3+

a) increases the covalent character b) decreases the covaient character c) increases the basic character d) increases the ionic character 29. The geometry of [Ni(CN)4]2- is a) tetrahedral

b) suqare planar

c) triangular

d) octahedral

30. The most penetrating radiations are a) α rays

b) β rays

R.ANNAMALAI

c) γ - rays

d) all are equally penetrating

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Page : 49

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HIGHER SECONDARY SECOND YEAR Chemistry MARCH 2010 1. Spiting of silver can be prevented by covering the molten metal with a thin layer of a) borax

b) charcoal

c) sand

d) silver bromide

2. Lanthanide contraction is due to a) perfect shielding of 3d electron

b) imperfect shielding of 3d electron

c) perfect shielding of 4f electron

d) imperfect shielding of 4f electron

3. Which is used as a power source in long mission space probes? a) Uranium-235

b) Uranium -238

c) plutonium -238

d) Mish metal

4. [ FeF6 ] 4- is paramgnetic because a) F- is a weaker ligand

b) F- is a stronger ligand

c) F- is a fiexidentate ligand

d) F- is a chelating ligand

5. Half- life period of a radioactive element is 100 seconds. Its average life period a) 100 seconds

b) 50 seconds

m o c . i a

c) 200 seconds

d) 144 seconds

I l A o s i L v l A a k . M w A ww N

6. Hydrolysis of an ester by dilute HCl is an example for a) zero order reaction

b) first order reaction

c) second order reaction

d) pseudo first order reaction

7. The Tyndall effect associated with colloidal particle is due to a) presence of charge

b) scattering of light

c) absorotion of light

d) reflection of light

8. Colloids are purified by a) precipitation

N .A

b) coagulation

c) dialysis

d) filtration

9. The colloid used for stomach disorder is a) colloidal silver

b) colloidal antimony

R

c) colloidal gold

10. Ostwald’s dilution law is applicable in the case of a) CH3COOH b) NaCl c) NaOH 11. C6H5N2Cl

Cu2 Cl2 / HCl

a) C6 H5 NH2

d) Milk of magnesia d) H2SO4

X. the compound X is

b) C6 H5 NHNH2

c) C6 H5 - C6 H5

12. The basic character of amines is due to a) tertrahedral structure

d) C6 H5 Cl

b) presence of nitrogen atom

c) lone pair of electrons on nitrogen atom

d) high electronegativity of nitrogen

13. Aniline reacts with benzoyl chloride in the presence of sodium hydroxie and gives benzanilide. This reaction is known as a) Gattermann reaction b) Sandmeyer;s reaction c) Schotten- Baumann reaction

d) Gomber’g Bachmann reaction

14. The amino acid without chiral carbon is a) glycine b) alanine c) proline 15. When starch is heated to 200 C - 250 C. the propduct is a) dextrin b) caramel c) barley sugar 0

R.ANNAMALAI

d) tyrosine

0

d) cellulose

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Page : 50

www.kalvisolai.com 16. The hybridistion in SF6 molecule is a) sp3

b) sp3 d

c) sp3 d2

d) sp3 d3

17. Which one of the following experiments confirmed the wave nature of electrom? a) G.P Thomson’s gold foil experiment

b) Black boby rediation

c) photoelectric effect

d) Millikan’s oil - drop experiment

18. When XA >> XB, A-B bond is a) polar covalent

b) non - polar covalent

c) ionic

d) metallic

19. A mong the halogen acids, the weakest acid is a) HI

b) HBr

c) HCl

d) HF

20. Which transition element shows the highest oxidation state? a) Os

b) Ti

c) Sc

d) Zn

21. The co-ordination number of ZnS is a) 3

b) 4

c) 6

d) 8

m o c . i a

22. Which of the following does not result in an increase in entropy? a) Rusting of iron

I l A o s i L v l A a k . M w A ww N b) conversion of ice to water

c) Crystallisation of sucrose from solution

d) Vaporisation of camphor

23. Thermodynamic condition for irreversible spontaneous process at constant T and P is a) Δ G < 0

b) Δ S < 0

c) Δ G > 0

24. In the equilibrium N2 + 3 H2 the process having

d) Δ H > 0

2 NH3 The maximum yield of ammonia will be obtained with

a) low pressure and high temperature

b) low pressure and low temperature

c) high temperature and high pressure

d) high pressure and low temperature

N .A

25. The equilibrium constant for the reaction 2A equilibrium constant for the reaction B

R

a) 25

b) 625

B is 25 mol-1 dm3 at 900K. What is the 2A in dm-3 mol at the same temperature?

c) 0.04

d) 0.4

26. The compound that reacts fastest with Lucas reagent is a) butan-1-ol

b) butan-2-ol

c) 2- methyl propan-1-ol

d) 2- methyl propan-2-ol

27. Which one of the following is a simple ether? a) CH3 - O - C2 H5

b) C2 H5 - O - C H3

c) C2 H5 - O - C2 H5

d) C3 H7 - O - C2 H5.

28. The IUPAC name of phenatole is a) ethyl phenyl ether

b) methyl phenyl ether

c) diethyl ether

d) diphenyl ether

29. The compound uesd in the preparation of the tranquilizer sulphonal is a) acetone

b) acetophenone

c) isopropyl alcohol

d) glycol

30. The isomerism exhibited CH3 CH2 COOH and CH3 COOCH3 is a) metamerism

b) position

R.ANNAMALAI

c) chain

d) functional

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HIGHER SECONDARY SECOND YEAR Chemistry JUNE - 2010 1. Ether is formed when alkyl halide is treated with sodium alkoxide. This method is known as ______ a) Hoffmann reaction

b) Williamson’s synthesis

c) Wurtz reaction

d) Kolbe’s reaction

2. Ethers should never be evaporated to dryness because _________ a) they form explosive peroxide

b) they are insoluble in water

c) they are inert

d) they are lighter than water

3. Schiff’s reagent gives pink colour with ___________ a) acetone

b) acetaldehyde

c) ethyl alcohol

d) methyl acetate

4. The acid which reduces Tollen’s reagent is ___________ a) acetic acid

b) benzoic acid

c) formic acid

5. Chloropicrin is used as ___________

d) oxalic acid

m o c . i a

I l A o s i L v l A a k . M w A ww N

a) explosive

b) dye

c) anaesthetic

d) soil sterilizing

6. Total number of atoms per unit cell in bcc is __________ a) 1

b) 2

c) 3

d) 4

7. Standard free energies of formation of elements are taken as _________ a) Positive

b) negative

c) zero

d) all of these

8. State of chemical equilibrium is __________ a) dynamic

b) stationary

N .A

c) none of these

d) both (a) and (b)

9. In an equilibrium reaction if Δ n (g) is positive then __________ a) Kc = Kp

b) Kc < Kp

R

c) Kc > Kp

Kc = 0

10. The excess energy which a molecule must possess to become active is known as __________ a) Kinetic energy c) potential energy

b) threshold energy d) activation energy

11. Dual character of an electron was explained by a) Bohr

b) Heisenberg

c) de Broglie

d) Pauli

12. The intra molecular hydrogen bonding is present in __________ a) o-nitrophenol

b) m-nitrophenol

c) p-nitrophenol

d) p-hydroxy benzaldehyde

13. The electron affinity of an atom is __________ a) directly prportional to its size

b) Inversely proportional to its size

c) independent of its size

d) none of these

14. The compound with garlic odour is __________ a) P2O3

b) P2O5

c) H3PO3

d) H3PO4

15. The outer most electronic configuration of chromium is _________ a) 3d64s0

b) 3d54s1 R.ANNAMALAI

c) 3d44s2

d) 3d34s24p1

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 52

www.kalvisolai.com 16. Electrophile used in the nitration of benzene is ________ a) hydronium ion b) sulphonic acid 17. Primary amine act as ___________ a) electrophile

b) Lewis base

c) nitronium ion c) Lewis acid

d) bromide ion d) Free radial

18. The amino acid without chiral carbon is ___________ a) Glycine

b) Alanine

c) Proline

d) Tyrosine

19. Important constituent of cell wall is _________ a) lipid

b) cellulose

c) proteins

d) vitamins

20. Which one of the following is a state function? a) q

b) Δ q

c) w

d) Δ s

21. An emulsion is a colloidal solution of _________ a) two solids

b) two liquids

c) two gases

d) one solid and one liquid

22. The autocatalyst in the oxidation of oxalic acid by acidified KMnO4 is _________ a) K2SO4

b) MnSO4

m o c . i a

c) KMnO4

d) CO2

c) reflection

d) scattering of light

I l A o s i L v l A a k . M w A ww N

23. The sky looks blue due to __________ a) adsorption

b) dispersion

24. The pH of a solution containing 0.1 N NaOH solution is _________ a) 1

b) 10-1

c) 13

d) 10-13

25. The number of secondary alcoholic group(s) in glycerol is _________ a) 1

b) 2

c) 0

d) 3

N .A

26. Which of the following has the maximum number of unpaired electrons? a) Mn2+

b) Ti3+

c) V3+

R

d) Fe2+

27. Alloys of lanthanides are called ___________ a) Mish metals

b) Metalloids

c) Plate metals

d) actinides

28. The isotope of which element is used in nuclear fission reaction? a) Barium

b) Lead

c) uranium

d) caesium

29. An example of a bidentate ligand is ___________ a) Cl-

b) en

c) NO2-

d) I-

30. Radioactivity is due to __________ a) stable electronic configuration

b) stable nucleus

c) unstable nucleus

d) unstable electronic configuration

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 53

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HIGHER SECONDARY SECOND YEAR Chemistry September -2010 1. If the magnetic moment value is 5.92 BM, the number of unpaired electrons is a) 5

b) 3

c) 4

d) 6

2. _________ is used in gas lamp material a) MnO2

b) CeO2

c) N2O5

d) Fe2O3

3. _________ from oxocations a) Lanthanides

b) Actinides

c) Noble gases

d) Alkali metals

4. The geometry of complex ion [ Fe (CN) 6 ] is 4-

a) tetrahedral

b) square planar

c) octahedral

d) triangular

5. Which one of the following particles is used to bombard 13 Al 27 to give 15 P 30 and a neutron? a) α - particle

b) Deuteron

c) proton

d) Neutron

6. For a reaction aA bB the rate of reaction is doubled when concentration of A is increased by four times. The rate of reaction is equal to a) K [ A ]a

m o c . i a

I l A o s i L v l A a k . M w A ww N b) K [ A ] 1/2

c) K [ A ] 1/a

d) K [ A ]

7. The migration of colloidal particles under the influence of an electric field is known as a) electro-osmosis

b) hot dialysis

c) electrodialysis

d) electrophoresis

c) Solid in Solid

d) Gas in Solid

8. Which type of colloid is a sol? a) Solid in liquid

b) Liquid in solid

9. In case of a physical adsorption, there is desorption when a) temperature increases

b) temperature decerases

c) pressure increases

N .A

d) concentration increases

10. When pH of a solution is 2, the hydrogen ion concentration in moles/ litre is

R

a) 1 x 10 -12

b) 1 x 10 -2

O

11. The isomerism exhibited by CH3- N a) position

c) 1 x 10 -7

O

b) chain

d) 1 x 10 -4 O

and CH2-N

c) functional

is OH d) tautomerism

12. The product obtained when nitrobenzene is treated with Zn/ NaOH is a) aniline b) azoxybenzene c) azobenzene d) hydrazobenzene 13. Which of the following will not undergo diazotisation? a) m- toluidine b) Aniline c) p-amino phenol 14. A dipeptide does not have a) two peptide units c) an amino group

d) Benzyl amine

b) portion of two amino acids d) Salt like structure

15. Glucose reacts with acetic anhydride in the presence of pyridine to give a) monoacetate b) diacetate c) penta- acetate d) no reaction 16. The bond order of oxygen molccule is a) 2.5 b) 1 c) 3 R.ANNAMALAI

d) 2

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Page : 54

www.kalvisolai.com 17. The hybridisation in IF7 molecule is a) sp3 d

b) sp3 d2

c) sp3

d) sp3 d3

18. The bond length of Cl2 molecule is a) 0.74 A

b) 1.44 A

c) 1.98 A

d) 2.28 A

19. The compound used as smoke screen is a) PCl3

b) PCl5

c) PH3

d) H3PO3

20. Formation of coloured ions is possible when compounds contain a) Paired electrons

b) unpaired electrons

c) lone pair of electrons

d) none of these

21. In a simple cubic cell, each point on a corner is shared by a) one unit cell

b) two unit cell

c) 8 unit cell

d) 4 unit cell

22. All the naturally occurring processes proceed spontaneously in a direction which leads to a) decrease of entropy

b) increase of enthalpy

c) increase in free energy

d) decrease of free energy

m o c . i a

23. The entropy change involved in the process water (liq) to water ( vapour, 373 K) involving Δ H vap = 40850 J mol-1 at 373K is

I l A o s i L v l A a k . M w A ww N

a) 10.952 J mol -1 K-1

b) 109.52 J mol -1 K-1

c) 100.952 J mol K -1

a) 1095.2 J mol K-1

-1

-1

24. If the equilibrium constants of the following reactions 2A 1 a) K1 = 2K2 b) K1 = c) K2 = ( K1)2 K2

Bis K1 and B 1 d) K1 = K2 2

25. When Δ ng in a homogeneous gaseous equilibrium is positive, then a) Kp = Kc

N .A

b) Kp < Kc

R

c) Kp > Kc

d) Kp =

2A is K2, then

Kc 2

26. Order of reactivity of alcohol towards sodium metal is a) primary < secondary > tertiary

b) primary > secondary > tertiary c) primary < secondary < tertiary d) primary > secondary < tertiary 27. According to lewis concept of acids and bases, ethers are a) neutral

b) acidic

c) basic

d) amphoteric

28. Higher ethers can be prepared from lower members by the action of a) conc. H2SO4

b) AgOH

29. Calcium acetate + Calcium benzoate

c) sodium alkoxide distillation

a) Benzophenone

b) Benzaldehyde

c) Acetophenone

d) phenyl benzoate.

d) Grignard reagent

?

30. The acid that cannot be prepared by Grignard reagent is a) acetic acid

b) formic acid

R.ANNAMALAI

c) butyric acid

d) benzoic acid

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 55

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HIGHER SECONDARY SECOND YEAR Chemistry MARCH 2011 1. Compound which is used as medicine for Asthma and whooping cough is a) Benzyl acetate

b) Ethyl acetate

c) Benzyl benzoate

d) Benzyl formate

2. Number of ether isomers possible for the molecular formula C4 H10 O is a) one

b) two

c) three

d) four

3. When ether is exposed to air for some time, an explosive substance produced is a) peroxide

b) Oxide

c) TNT

d) Superoxide

4. A cyanohydrin of a compound X on hydrolysis giyes lactic acid. X is a) HCHO

b) C3 CHO

c) ( CH3 )2 CO

d) C6H5 CH2 CHO

5. The compound found in some stony deposit in kidneys is a) potassium oxalate

b) oxalic acid

c) potassium succinate

m o c . i a

6. The Bragg’s equation is a) λ = 2d sin θ

d) calcium oxalate

I l A o s i L v l A a k . M w A ww N b) nd = 2λ sin θ

c) 2λ = nd sin θ

d) nλ = 2d sin θ

7. According to Trouton’s rule, the value of change in entropy of vaporisation is a) 21 cal. deg-1 mole-1

b) 12 cal. deg-1 mole-1

c) 21 K. cal. deg. mole-1

d) 12 K cal. deg.mole-1

8. In Which of the following, the process is always non feasible a) Δ H > 0, Δ S > 0

b) Δ H < 0, Δ S > 0

c) Δ H > 0, Δ S < 0

d) Δ H < 0, Δ S < 0

9. In the manufacture of ammonia by Haber’s process the maximum yield of ammomia will be obtained with the process having

N .A

a) low pressure and high temperature

R

c) high pressure and high temperature

b) low pressure and low temperature

d) high pressure and low temperature

10. The relationship between Kp and Kc for the equilibrium 2 H2O (g) + 2 Cl2 (g) a) Kp = Kc

4 HCl (g) +O2(g) is

b) Kp = Kc (RT)2

c) Kp = Kc (RT)1

d) Kp = Kc (RT)-2

11. The intramolecular hydrogen bonding is present in a) o-nitrophenol

b) m-nitrophenol

c) p-nitrophenol

d) none of these

12. The momentum of a particle which has de- Broglie wavelength of 1Å (h = 6.626x10 -34 kgm2 s-1 ) is a) 6.63 x 10-23 kg ms-1

b) 6.63 x 10-24 kg ms-1

c) 6.63 x 10-34 kg ms-1

d) 6.63 x 1034 kg ms-1

13. Effective nuclear charge can be calculated using the formula a) Z * = Z - S

b) Z * = Z + S

c) Z * = S - Z

d) Z = Z * - S

14. Inert gas used in beacon lights for safety of air navigation is a) Helium

b) Argon

c) Neon

d) Xenon

15. Which one of the following will have maximum magnetic moment? a) 3d2

b) 3d6

c) 3d7

R.ANNAMALAI

d) 3d9

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 56

www.kalvisolai.com 16. Nitromethane condenses with acetaldehyde to give a) nitropropane

b) 1-nitro-2- propanol

c) 2- nitro -1-propanol

d) 3- nitropropanol

17. Which one of the following is a secondary amine? a) Aniline

b) Diphenyl amine

c) Secondary butyl amine

d) tertiary butyl amine

18. When aqueous solution of benzene diazonium chloride is boiled, the product formed is a) Benzyl alcohol

b) Benzene +N2

c) Phenol

d) phenyl hydroxyl amine

19. The amino acid without chiral carbon is a) Glyine

b) Alanine

c) proline

d) Tyrosine

20. Invert sugar is a mixture of equal amount of a) D ( + ) glucose and sucrose

b) D ( - ) fructose and sucrose

c) D ( + ) glucose and D ( - ) fructose

d) sucrose and maltose

21. The t1/2 of first order reaction is 100 minutes. the rate constant of the reaction is a) 6.93 x 103 min-1

b) 0.693 x 10-3 min-1

d) 69.3 x 10-2 min-1

I A s i L v l A a k . M w A ww N N A . R

22. Colloidal medicines are more effective because a) they are clean

m o c

c) 6.93 x 10 -3 min-1

. i a ol

b) they are easy to prepare

c) the germs move towards them

d) they are easily assimilated and adsorbed

23. The decomposition of hydrogen peroxide in the presence of colloidal platinum is a/an a) positive catalysis

b) negative catalysis

c) auto- catalysis

d) induced catalysis

24. For chemisorption which is wrong? a) It is irreversible

b) It requires activation energy

c) It forms multilayers on adsorbate

d) Surface compounds are formed

25. For the titration between oxalic acid and sodium hydroxide, the indicator used is a) potassium permanganate

b) phenolphthalein

c) litmus

d) methyl orange

26. Which compound is formed when excess of KCN is added to an aqueous solution of copper sulphate? a) Cu (CN)2

b) K2 [Cu (CN)6]

c) K [ Cu (CN)2]

d) Cu2 (CN)2 + (CN)2-

27. Alloys of Lanthanides are called as a) Mish metals

b) Metalloids

c) plate metal

d) actinides

28. Lanthanide contraction due to a) perfect shielding of 4f electrons

b) imperfect shielding of 4f electrons

c) perfect shielding of 3d electrons

d) imperfect shielding of 3d electrons

29. An example of a chelating ligand is a) nitro

b) chloro

c) bromo

d) en

30. 92U235 nucleus absorbs a neutron and disintegrates into 54 Xe139, 38 Sr 94 and X. What is X? a) 3 neutrons

b) 2 neutrons

R.ANNAMALAI

c) α-particle

d) β-particle

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Page : 57

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HIGHER SECONDARY SECOND YEAR Chemistry JUNE - 2011

1. Rutile is a) TiO2

b) Cu2O

c) MoS2

d) Ru

2. Free energy (G) and the free energy change (ΔG) correspond to the a) System only

b) Surrounding only

c) System and surrounding

d) all of these

3. The entroy change ΔS(fusion) = involved in the process of H2O(S) pressure involving ΔH(fusion) = 6008 Jmol-1 is a) 22.007 Jmol-1 K-1

b) 22.007 Jmol K-1

c) 220.07 Jmol-1 K-1

d) 2.2007 Jmol-1 K-1

H2O(l) at 0oC and 1 atm

4. When Δn(g) in a homogeneous gases equilibrium is positive, then a) Kp = Kc

b) Kp < Kc

c) Kp > Kc

5. Forward reaction takes place, when? a) Q < Kc

b) Q > Kc

c) Q = Kc

d) Kp = Kc / 2

m o c . i a

d) Kc = 1/Q

I l A o s i L v l A a k . M w A ww N

6. Which of the following compounds has the smell of better almonds? a) Aniline

b) Nitromethane

c) Benzene sulphonic acid

d) Nitrobenzene

7. Nitro-acinitro tautomerism is exhibited by a) nitronmethane

b) nitro benzene

c) chloropicrin

d) o-toluidine

8. Use of chloropicrin (CCl3NO2) is as a) explosive

N .A

b) dye

c) anaesthetic

d) sterilizing agent

9. _________ is involved in the process of blood coagulation

R

a) Fats and oils

b) Cephaalin

c) Glycolipids

d) Lecithins

10. Mixture of equal molecules of D (+) glucose D (-) fructose is called as a) Fruit sugar

b) Invert sugar

c) Cane sugar

d) Non-sugar

11. Bordeaux mixture contains a) AgNO3 + HNO3

b) ZnSO4 + H2SO4

c) CuSO4 + Ca(OH)2

d) KMnO4 + HCl

12. The isotope used as a power source in long mission space probes is a) U-235

b) Pu-235

c) Pu-238

d) U-238

13. Cera is used in a) toys

b) tracer bullets

c) gas lamp meterial

d) none of these

14. The coordination number of Ni (II) In [Ni (CN)4]2- is a) 2

b) 4

c) 5

d) 6

15. Find out the missing in a reaction 5Be

Be8+?

8

a) α - particle

b) β - particle

4

c) electron capture

d) positron

16. When phenol is distilled with zinc dust, It gives a) benzaldehyde

b) benzoic acid

R.ANNAMALAI

c) toluene

d) benzene

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 58

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17. Williamson’s synthesis is an examble of a) nucleophilic addition

b) electrophilic addition

c) electrophilic substitution

d) nucleophilic substitution

18. Diethyl ether behaves as a a) Lewis acid

b) Lewis base

c) Neutral compound

d) Bronsted acid

19. Aldol is a) 2 - hydroxy butanol

b) 3 - hydroxy butanol

c) 3 - hydroxy butanal

d) 2 - hydroxy butanal

20. The isomerism exhibited by CH3CH2COOH and CH3COOCH3 is a) Metamerism

b) Position

c) Chain

d) Functional

21. In the energy of an electron in the second Bohr orbit of H-atom is - E, What is the energy of the electron in the Bohr’s first orbit? a) 2E

b) -4E

c) -2E

d) 4E

22. The Hybridisation involved in XeF6 is a) Sp3d3

b) Sp3d2

m o c . i a

c) Sp3d

d) Sp3

I l A o s i L v l A a k . M w A ww N

23. Among the following which has the maximun ionisation energy a) Alkali metals

b) Alkaline earth metals

c) Halogens

d) Noble gases

24. The lightest gas which is non-inflammable is a) He

b) H2

c) N2

d) Ar

25. Silver salt used in photography is a) AgCl

N .A

b) AgNO3

c) AgF

d) AgBr

26. For a reaction Ea = O and k = 4.2 x 105 sec-1 at 300 k value of k at 310 K will be a) 4.2 x 105 sec-1 c) 8.4 x 105 sec

R

b) 8.4 x 105 sec-1 d) unpredictable

27. An emulsion is a colloidial solution of a) two solids

b) two liquids

c) two gases

d) one solid and one liquid

28. In case of physical adsorption, there is desorption when a) temperature increases

b) temperature decreases

c) pressure increases

d) concentration increases

29. The oxidation of sodium sulphite by air is retarded by a) MnO2

b) H2S

c) Alcohol

d) AS2O3

30. The pH of a solution containing 0.1 N NaOH solution is a) 1

b) 10-1

c) 13

R.ANNAMALAI

d) 10-13

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 59

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HIGHER SECONDARY SECOND YEAR Chemistry October - 2011 1. Which of the following pairs have almost equal radii? a) Mo, W

b) Y, La

c) Zr, Hf

d) Nb, Ta

2. The most common oxidation state of lanthanide is a) +2

b) +1

c) +3

d) +4

3. The fuel used in nuclear power plant is a) Copper

b) Lead

c) Uranium

d) Radium

4. The co-ordination number of Ni II in (Ni (Cl)4]2- is a) 2

b) 4

c) 5

d) 6

5. Loss of a β- partieie is equivalent to a) Increase of one proton only

b) decrease of one neutron only

c) both (a) & (b)

d) none of these

m o c . i a

6. If the activation energy is high, then the rate of the reaction is a) high

I l A o s i L v l A a k . M w A ww N

b) moderate

c) low

d) cannot be predicted

7. The migration of colloidal particles under the influence of an electric field is known as a) electro osmosis c) electrodialysis

b) electrolysis

d) electrophoresis

8. For chemisorption, which is wrong? a) It is irreversible

b) It requires activation energy

N .A

c) It forms multimolecular layers on absorbate

d) Surface compounds are formed

9. The catalyst used for the decomposition of KClO3 is

R

a) MnO2

b) Cl2

c) V2O5

d) Pt

10. When one coulomb of electricity is passed through an electrolytic solution mass deposited on the electrode is equal to a) equivalent weight

b) molecular weight

c) electrochemical equivalent

d) one gram

11. The isomerism exhibited by CH3 - CH2 NO2 and CH3 - O - N = O is a) position

b) chain

c) functional

d) tautomerism

12. When nitromethane is reduced with Zn dust + NH4Cl we get a) CH3NH2

b) C2H5NH2

c) CH3NHOH

d) C2H5COOH

13. Electrophile used in the nitration of benzene is a) hydronium ion

b) sulphonic acid

c) nitronium ion

d) bromide ion

14. The reducing sugar of the following is a) sucrose

b) cellulose

c) starch

d) glucose

15. The amino acid without chiral carbon is a) Glycine

b) Alanine R.ANNAMALAI

c) Proline

d) Tyrosine

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Page : 60

www.kalvisolai.com 16. The bond order of oxygen molecule is a) 2.5

b) 1

c) 3

d) 2

17. Molecular orbital with the least energy is a)

1s

b)

* 1s

c)

py

d) * py

2

18. Among the following which has the maximum Ionisatlon energy? a) Alkali metals

b) Alkaline earth metals

c) Halogens

d) Noble gases

19. The shape of PCl5 is a) Pyramidal

b) Trigonal bipyramidal

c) Linear

d) Tetrahedral

20. The general outer electronic configuration of d-block elements is? a) (n-1)d1-10ns0-2

b) (n-1)d1-5ns2

c) (n-1)d0ns1

d) (n-1)d1-10ns1-2

21. The total number of atoms per unit cell in BCC is a) 1

b) 2

c) 3

d) 4

22. The network obtained from a system is given by

m o c . i a

I l A o s i L v l A a k . M w A ww N

a) w - P Δ V

b) w + PΔ V

c) - w + PΔ V

23. Entropy is a ________ function a) state

b) path

c) exact

d) -w-PΔ V

d) inexact

24. The fraction of total moles of reactant dissociated is called a) dissociation equilibrium

b) degree of association

c) degree of dissociation

d) dissociation constant

N .A

25. Two moles of ammonia gas arc Introduced into a previously evacuated 1.0 dm3vessel in which it partialy dissociates at high temperature. At equilibrium 1.0 mole of ammonia remains. The equilibrium constant Kc for the dissociation is

R

a) 27/16 (mole dm-3)2 c) 27/4 (mole dm-3)2

b) 27/8 (mol dm-3)2 d) none of these

26. Order of reactivity of alcohol towards sodium metal is a) primary < secondary > tertiary

b) primary > secondary > tertiary

c) primary < secondary < tertiary

d) primary > secondary < tertiary

27. Diethyl ether can be decomposed with a) HI

b) KMnO4

c) NaOH

d) H2O

28. Which of the following produces ether, when heated with cone. H2SO4 at 413K? a) Organic acid

b) Aldehyde

c) Alcohol

d) Ketone

29. Methyl ketones are characterised by a) fehling’s solution

b) Iodoform test

c) Schiffs test

d) Tollen’s reagent

30. The acid which reduces Tollen’s reagent is a) acetic acid

b) benzoic add

R.ANNAMALAI

c) formic arid

d) oxalic acid

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HIGHER SECONDARY SECOND YEAR Chemistry March - 2012 1. The compound that undergoes bromination easily is a) benzoic acid

b) benzene

c) phenol

d) toluene

2. Diethyl ether can be decomposed with a) HI

b) KMnO4

c) NaOH

d) H2O

3. How many alcohol isomers are possible for the formula C4H10O? a) 4

b) 2

c) 3

d) 7

4. Schiff’s reagent gives pink colour with a) acetone

b) acetaldehyde

c) ethyl alcohol

d) methyl acetate

5. Which of the following compounds is optically active? a) CH3CH2COOH

b) HOOC - CH2 - COOH

c) CH3CH(OH)COOH

d) Cl2CHCOOH

m o c . i a

6. The number of close neighbours in a body centred cubic lattice of identical spheres is a) 6

I l A o s i L v l A a k . M w A ww N

b) 4

c) 12

d) 8

7. Which of the following processes is always non - feasible? a) Δ H > 0, Δ S > 0

b) Δ H < 0, Δ S > 0

c) Δ H > 0, Δ S < 0

d) Δ H < 0, Δ S < 0

8. In SI unit 1 eu is a) 41.84 EU

b) 4.184 EU

N .A

c) 418.4 EU

d) 4184 EU

9. If the equilibrium constants of the following reactions 2A K2 respectively then 1 a) K1 = 2K2 b) K1 = c) K2 = ( K1)2 K2

R

B is K1 and B

d) K1 =

2A are K1 and

1 K2 2

10. The equilibrium constant Kc for A (g) B (g) is 2.5 x 10-2. The rate constant of forward reaction -1 is 0.05 sec . Therefore the rare constant of the reverse reaction is a) 2 seconds-1

b) 0.2 second

c) 2 Minutes

d) 0.2 minute

c) λ = hv / m

d) λ = h / mv

11. de Broglie equation is a) λ = mv / h

b) λ = hmv

12. The hybridisation in NH ion is + 4

a) sp

b) sp2

c) sp3

d) sp3d

13. Among the following which has higher electron affinity value? a) Fluorine b) Chlorine 14. The compound with garlic odour is a) P2O3 b) P2O5 15. Paramagnetism is the property of

c) Bromine c) H3PO3

d) Iodine d) H3PO4

a) paired electrons

b) completely filled electronic subshells

c) unpaired electrons

d) completely vacant electronic subshells

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 62

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16. C6H5N2Cl

H3PO2

X + N2 + HCl. The compound X is

Cu+

a) C6H5Cl

b) C6H5NHNH2

c) C6H6

d) C6H5NO2

17. Which of the following will not undergo diazotisation? a) m - toluidine

b) aniline

c) p - aminophenol

d) benzyl amine

18. Which of following componds is called oil of mirbane? a) Aniline

b) Nitromethane

c) Benzene diazonium chloride

d) Nitrobenzene

19. The reducing sugar among the following is a) sucrose

b) cellulose

c) starch

d) glucose

c) proline

d) tyrosine

20. The amino acid without chiral carbon is a) glycine

b) alanine

21. The term A in arrhenius equation is called as a) probability factor

b) activation energy

c) collision factor

d) frequency factor

m o c . i a

I l A o s i L v l A a k . M w A ww N

22. The Tyndall’s effect associated with colloidal particles is due to a) presence of charge

b) scattering of light

c) absorption of light

d) reflection of light

23. Colloids are purified by a) precipitation

b) coagulation

c) dialysis

d) filtration

24. Medicine used as an eye lotion is a) silver sol

N .A

b) colloidal gold

c) colloidal antimony

d) milk of magnesia

25. Ostwald’s dilution law is applicable in the case of the solution of a) CH3COOH

R

b) NaCl

c) NaOH

d) H2SO4

26. Which of the following ions will give colourless aqeous solution? a) Ni2+

b) Fe2+

c) Cu2+

d) Cu+

27. _________ form oxocations. a) Lanthanides

b) Actinides

c) Noble gases

d) Alkali metals

28. Fuel used in nuclear power plants is a) U 235

b) Pu 235

c) Pu 238

d) U 238

29. The geometry of [Ni (CN)4]2- is a) Tetrahedral

b) Square planar

30. Half - life period of 79Au a) 216 days

198

c) Triangular

d) Octahedral

nucleus is 150 days. The average life is

b) 21.6 days

R.ANNAMALAI

c) 261 days

d) 26.1 days

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 63

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HIGHER SECONDARY SECOND YEAR Chemistry JUNE - 2012 1. An example for Frenkel defect is a) NaCl

b) AgBr

c) CsCl

d) FeS

2. In which of the following, process in always non-feasible? a) Δ H > 0, Δ S > 0

b) Δ H < O, ΔS < 0

c) Δ H > 0, Δ S < 0

d) Δ H < 0, Δ S < 0

3. A peocess accompanied by increase in free energy tends to be a) reversible process

b) irreversible process

c) non-spontaneous process

d) spontaneous process

4. If the equilibrium constants of the reactions 2HI respectively, then a) K1=2K2

b) K1= 1/K2

H2 + I2 and H2 + I2

c) K2 = ( K2)2

2HI are K1 and K2

d) K1= 1/K22

5. Two moles of ammonia gas are introduced into a previously evacuated 1.0 dm3 vessel in which it partially dissociates at high temperature. At equilibrium 1.0 mole of ammonia remains. The equilibrium constant Kc for this dissociation is 27 27 a) (mole dm-3)2 b) (mole dm-3)2 8 16 27 c) (mole dm-3)2 d) None of these 4 6. When nitromethane is reduced with Zine dust + NH4Cl, it forms is

m o c . i a

a) CH3NH2

I l A o s i L v l A a k . M w A ww N b) C2H5NH2

c) CH3NHOH

d) C2H5COOH

7. When aquequs solution of benzene diazonium chloride is boiled, the product formed is a) Benzyl alcohol

N .A b) Phenol

c) Benzene + N2

d) Phenyl hydroxylamine

8. The organic compound that undergoes carbylamine reaction is a) (C2H5)2NH

R

b) C2H5NH2 pyridine 9. Glucose + accetic anhydride a) di acetate

b) tetra acetate

c) (C2H5)3N

d) (C2H5)4N+1-

c) penta acetane

d) hexa acetate

10. Which of the following is not true for amino acid? a) Amino acid forms zwitter ion

b) Amino acid has isoelectric poit

c) Amino acid has dual behaviour

d) Amino acid is insoluble in NaOH solution

11. Which of the following compounds is not coloured? a) Na2CuCl4

b) Na2CdI4

c) K4[Fe(CN)6]

d) K3[Fe(CN)6]

12. ________ form oxocations a) Lanthanides

b) Actinides

c) Noble gases

d) Alkali metals

13. The radioactive lanthanide is a) Lanthanum

b) Promethium

c) Gadolinium

d) Terbium

14. The unit of paramagnetic moment is a) debye

b) k Joules R.ANNAMALAI

c) BM

d) ergs

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Page : 64

www.kalvisolai.com 15. After 24 hours only 0.125 g out of the initial quantity of 1 g of a radioisotope remains. Then its half - life period is a) 3 hours

b) 6 hours

c) 8 hours

d) 12 hourse

16. Glycerol is used a) as a sweetening agent

b) in the manufacture of good quality soap

c) in the manufacture of nitroglycerine

d) all of these

17. Diethyl ether can be decomposed with a) HI

b) KMn04

c) NaOH

d) H2O

18. The solvent used for the Grignard reagent is a) ethyl alcohol

b) diethyl ether

c) acetone

d) benzene

19. The compound which does not reduce Fehling’s solution is a) formaldehyde

b) acetaldehyde

c) benzaldehyde

d) propionaldehyde

c) CH3COOH

d) Cl2CH-COOH

20. Among the following the strongest acid is a) ClCH2COOH

b) Cl3C-COOH

21. The bond order of nitrogen molecule is a) 1

c) 2.5

d) 3

22. The type of hybridisation in PCl5 molecule is a) sp3d2

m o c . i a

I l A o s i L v l A a k . M w A ww N

b) 2

b) sp3d

c) sp3

d) sp2

23. Among the following, which has the maximum ionisation energy? a) Alkali metals

b) Noble gases

c) Alkaline earth metals

d) Halogens

24. The shape of XeF4 is a) Tetrahedral

N .A

b) octahedral

c) square planar

d) pyramidal

25. Which transition element shows the highest oxidation state?

R

a) Sc

b) Ti

c) Os

d) Zn

26. Decomposition of nitrogen pentoxide in CCl4 is a a) zero order reaction

b) first order reaction

c) pseudo-first order reaction

d) fractional order reaction

27. For chemisorption which of the following is wrong? a) Irreversible

b) It requires activation energy

c) It forms multimolecular layers on adsorbate

d) Surface compounds are formed

28. The phenomenon of Tyndall’s effect is not observed in a) emulsion

b) colloidal solution

c) true solution

d) none of these

29. The rate of decomposition of hydrogen peroxide decreases in presence of a) Platinum

b) Iron

c) Mn02

d) Glycerine

30. The pH of 0.1 N NaOH solution is a) 1

b) 10-1

c) 13

R.ANNAMALAI

d) 10-13

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HIGHER SECONDARY SECOND YEAR Chemistry OCTOBER - 2012 1. The crystal lattice with coordination number four is a) CsCl

b) ZnO

c) BN

d) NaCl

2. All the naturally occurring processes proceed spontaneously in a direction which lead to a) decrease in entopy

b) increase in enthaly

c) increase in free energy

d) decrease in free energy

3. The entropy change for the following process possessing Δ H (transition) as 2090 J.mol-1 1 mol Sn (α, 13oC) 1 mole Sn (β, 13oC) a) 22.007 J.mol-1K-1

b) 7.307 JK-1mol-1

c) 0.314 J.molK-1

d) 109.52 J.mol-1K-1

4. In an equilibrium reaction, when Q
5. Which of the following gaseous reactions Kp
PCl3(g) + I2(g)

c) N2(g) + 3H2(g)

m o c . i a

I l A o s i L v l A a k . M w A ww N

c) both forward and reverse reaction are favoured

b) H2(g) + I2(g)

2NH3(g)

2HI(g)

d) CO(g) + H2O(g)

CO2(g) + H2(g)

6. Nitrobenzene on electrolytic reduction in cone. Sulphuric acid, the intermediate formed is a) C6H5NH - NHC6H5

b) C6H5NHOH

c) C6H5 - N = N - C6H5

N .A

d) C6H5HSO4

7. Which one of the following is the most basic? a) Ammonia

b) Methylamine

R

c) Dimethylamine

d) Aniline

8. The compound which does not undergo diazotisation reaction is a) m-toluidine

b) benzylamine

c) aniline

d) p-aminophenol

9. The building block of proterins are a) α - hydroxy acids

b) α - amino acids

c) β - hydroxy acids

d) β - amino acids

10. An example for reducing disaccharide is a) Glucose

b) Fructose

c) Sucrose

d) Lactose

11. The most malleable and ducitle of all metals is a) silver

b) gold

c) copper

d) zinc

12. The maximum oxidation state exhibited by lanthanide is a) +1 b) +3 c) +2 13. Which is used in Gas lamp materials?

d) +4

a) Ceria b) Thoria c) Mish metal d) Both (a) and (b) 14. The Type of isomerism found in the complexes [Co(NO2) (NH3)5] SO4 and [Co(SO4) (NH3)5]NO2 is a) Hydrate isomerism

b) Coordination isomerism

c) Linkage isomerism

d) lonisation isomerism

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 66

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15. After 24 Hours, only 0.125g out of the initial quantity of 1 g of a radioisotope remains behind. Then its half-life perod is a) 0.8 hours

b) 8 hours

c) 100 hours

d) 80 hours

16. Order at reactivity of Alcohol towards sodium metal is a) primary < secondary > tertiary

b) primary > secondary < tertiary

c) primary > secondary > teriary

d) primary < secondary < tertiary

17. When diethyl ether reacts with chlorine in presence of sunlight it gives a) chlorodiethyl ether

b) dichlorodiethyl ether

c) perchlorodiethyl ether

d) both (a) and (b)

18. Intermolecular hydrogen bonds are not present in a) CH3COOH 19. 3CH3COCH3

b) C2H5OC2H5 Conc H2SO4

a) Mesitylene

c) CH3CH2OH

d) C2H5NH2

the product is

b) Mesityl oxide

c) Phorone

d) Paraldehyde

m o c . i a

20. The acid that cannot be prepared by Grignard reagent is a) Acetic acid

I l A o s i L v l A a k . M w A ww N b) Formic acid

c) Butyric acid

21. De Broglie equation is a) λ = mv / h

b)

λ = hmv

d) Benzoic Acid

c) λ = hv / m

d) λ = h / mv

22. The hybridisation in ICI-4 ion is a) sp3

b) sp3d

c) sp3d2

d) sp3d3

23. Noble gases have _________ electron affinity. a) high

b) low

c) zero

N .A

d) very low

24. Which of the following is the second most abundant element in earth’s crust? a) Carbon

b) Silicon

R

c) Germanium

d) Tin

25. When excess of KCN is added to an equeous solution of copper sulphate, it gives a) Cu(CN)2

b) K2[Cu(CN)6]

c) K[Cu(CN)2]

d) Cu2(CN)2 + (CN)2

b) K = A.e-RT/Ea

c) K = A.e-Ea/RT

d) K = A.eEa/RT

c) gas in solid

d) solid in gas

26. Arrhenius equation is a) K = A.e-I/RT

27. Fog is a colloidal solution of a) gas in liquid

b) liquid in gas

28. The Iron catalyst used in the synthesis of ammonia in Haber’s process is poisoned by a) AS2O3

b) V2O5

c) H2S

d) Glycerine

29. The migration of colloidal particles under the influence of an electric field known as a) Electro - osmosis

b) Brownian movement

c) Electro - dialysis

d) Cataphoresis

30. When pH of a solution is 2, the hydrogen ion concentration in moles. Lit-1 is a) 1 x 10-12

b) 1 x 10-2

R.ANNAMALAI

c) 1 x 10-7

d) 1 x 10-4

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

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HIGHER SECONDARY SECOND YEAR Chemistry March - 2013

1. ....................... form oxocations. a) Lanthanides

b) Actinides

c) Noble gases

d) Alkali metals

2. The metals present in Nichrome alloy. a) Cr, Ni, Fe

b) Cr, Co, Ni

3. 2H2O(g) + 2Cl2(g)

c) Cr, Fe

d) Cr, Fe, Cu

4 HCl(g) + O2(g) The relationship between KP and KC for the equilibrium is.

a) KP = KC

b) KP = KC(RT)2

c) KP = KC(RT)1

d) KP = KC(RT)-2

4. The aminoacid without Chiral carbon is. a) Glycine

b) Alanine

c) Proline

d) Tyrosine

5. Silica gel is utilised for the ....................... of the number of gases. a) adsorption 6.

b) absorption

c) desorption

d) all of these

U235 nucleus absorbs a neutron and disintegrates into 54Xe139, 38Sr94 and X. What is X?

92

a) 3 neutrons

b) 2 neutrons

c) α - particle

m o c . i a

d) β - particle

I l A o s i L v l A a k . M w A ww N

7. Ethylene diamine is converted to ethylene glycol using. a) Na2CO3 solution

b) Nitrous acid

c) NaHCO3 solution

d) Baeyer’s reagent

8. In nitroalkanes - NO2 group is converted to - NH2 group by using the reagent. a) Sn/HCl

b) Zn dust

c) Zn/NH4Cl

d) Zn/NaOH

9. Strong mineral acids ......................... the ethereal oxygen forming oxonium salts. a) electronate

b) protonate

c) deprotonate

d) dehydrate

10. When pH of a solution is 2, the hydrogen ion concentration in moles litre-1 will be. a) 1 x 10-12

N .A

b) 1 x 10-4

c) 1 x 10-7

d) 1 x 10-2

11. Paramagnetism is the property of. a) paired electrons

R

c) unpaired electons

b) completely filled electronic sub-shells d) completely vacant electronic sub-shells

12. In the manufacture of ammonia by Haber’s process, the maximum yield of ammonia will be obtained with the process having. a) low pressure and high temperature

b) low pressure and low temperature

c) high pressure and high temperature

d) high pressure and low temperature

13. The noble gases are unreactive because they. a) have same number of electrons c) are gases with low density 14. Emulsifying agent is used for. a) precipitation of an emulsion c) stabilization of an emulsion 15. [FeF6]4 - is paramagnetic because.

b) have an atomicity d) have stable electronic configuration b) denaturation of an emulsion d) oxidation of an emulsion

a) F - is a weaker ligand

b) F - is a stronger ligand

c) F - is a flexidinate ligand

d) F - is a chelating ligand

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 68

www.kalvisolai.com 16. The total number of atoms per unit cell in fcc is. a) 1

b) 2

c) 3

d) 4

17. Among the following the strongest acid is. a) CH3COOH

b) HCOOH

c) ClCH2COOH

d) CH3CH2COOH

18. The hybridisation in PCl5 molecule is. a) sp3

b) sp3d2

c) sp3d

d) sp2

19. Conversion of benzene diazonium chloride to chlorobenzene is a) Sandmeyer’s reaction

b) Stephen’s reaction

c) Gomberg reaction

d) Schotten - Baumann reaction

20. Which of the following does not result in an increase in entropy? a) Rusting of iron

b) Conversion of ice to water

c) Crystallisation of sucrose from solution

d) Sublimation of camphor

21. The organic compound that undergoes carbylamine reaction is. a) (C2H5)2NH

m o c

b) C2H5NH2

c) (C2H5)3N

d) (C2H5)4N+I-

I A s i L v l A a k . M w A ww N N A . R . i a ol

22. For a reaction Ea = 0 and K=4.2 x 105 sec-1 at 300 K, the value of K at 310 K will be. a) 4.2x105 sec-1

b) 8.4x105 sec-1

c) 8.4x10-5 sec-1

d) 4.2x10-5 sec-1

23. Maximun oxidation state exhibited by lanthanides is. a) +1

b) +2

c) +3

d) +4

24. On moving down a group, the radius of an ion. a) decreases

b) increases

c) first increases and then decreases

d) remains constant

25. Thermodynamic condition for irreversible spontaneous process at constant T and P is. a) Δ G < 0

b) Δ G = 0

c) Δ G > 0

d) a and c

26. Which one of the following is a simple ether? a) CH3 - O - C2H5

b) C6H5 - O - CH3

c) C2H5 - O - C2H5

d) C3H7 - O - C2H5

27. Dual character of an electon was explained by. a) Bohr

b) Heisenberg

c) De Broglie

d) Pauli

28. The compound that does not undergo Cannizaro reaction is. a) formaldehyde

b) benzaldehyde

c) acetaldehyde

d) trimethyl acetaldehyde

29. The phenomenon of Tyndall’s effect is not observed in. a) emulsion

b) colloidal solution

c) true solution

d) gel

30. The reducing sugar is. a) Sucrose

b) Cellulose

R.ANNAMALAI

c) Starch

d) Glucose

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 69

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HIGHER SECONDARY SECOND YEAR Chemistry JUNE - 2013

1. Chloropicrin is a) CCl3CHO

b) CCl3NO2

c) CHCl3

d) CH3NO2

2. The rate constant for a first order reaction is 1.54 x 10-3 sec-1. Its half life period is. a) 540 seconds

b) 450 seconds

c) 45 seconds

d) 54 seconds

3. ................... is used in gas lamp material. a) MnO2

b) CeO2

c) N2O5

d) Fe2O3

4. For an isothermal process, the entropy change of the universe during a reversible process is. a) Zero 5. C6H5NH2

b) More NaNO2 / HCl 273 K - 278K

a) C6 H5 Cl

c) Less

X. Identify X.

b) C6 H5 NHOH

c) C6 H5 N2 Cl

6. Ruby glass is a colloidal solution of. a) Solid - sol

d) C6 H5 OH

m o c . i a

I l A o s i L v l A a k . M w A ww N b) Gel

c) Emulsion

7. Paramagnetic moment is expressed in. a) Debye Unit

d) None of the above

b) Kilojoules

d) sol

c) BM

D) ergs

8. β - particle is represented as. a) +1e0

b) -1e0

c) 1H1

d) 2He4

9. The compound used in the preparation of the tranquilizer, sulphonal is. a) acetone

N .A

b) acetophenone

c) Isopropyl alcohol

d) glycol

10. The unit of electron affinity is. a) MeV

R

b) JK -1

c) eV

d) KJ mol -1

11. The equivalent conductivity of CH3COOH at 25oC is 80 ohm -1 cm2 eq-1 and at infinite dilution 400 ohm-1 cm2 eq-1. The degree of dissociation of CH3COOH is ..................... a) 1

b) 0.2

c) 0.1

d) 0.3

12. The number of secondary alcoholic group in glycerol is. a) 1

b) 2

c) 3

d) 0

13. IUPAC name of this compound CH2O - CH - CH3 CH3 a) 1 - Methoxy propane

b) Methyl isopropyl ether

c) Isopropyl methyl ether

d) 2 - Methoxy propane

14. State of Chemical equilibrium is. a) dynamic b) stationary

c) none

d) both (a and b)

15. The phenomenon of Tyndall’s effect is not observed in. a) Emulsion b) Colloidal solution c) True solution 16. Glucose is not oxidised to gluconic acid by. a) Br2/H2O b) Fehling’s solution R.ANNAMALAI

c) Tollens Reagent

d) Gel d) Conc. HNO3

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Page : 70

17. Which of the following compounds will not give positive chromyl chloride test? a) CuCl2

b) HgCl2

18. For the reaction 2Cl(g) a) +, -

c) ZnCl2

d) C6H5Cl

Cl2(g) the signs of Δ H and Δ S respectively are.

b) +, +

c) -, -

d) -, +

19. Aspirin is. a) Salicylic acid

b) Acetyl salicylic acid

c) Salicylaldehyde

d) Methyl Salicylate

20. For chemisorption, which is wrong? a) Irreversible

b) It requires activation energy

c) It forms multimolecular layers on adsorbate

d) Surface compounds are formed

21. In the formation of HI from H2 and I2 , Kp = Kc because. a) Δ ng = 2

b) Δ ng = 1

c) Δ ng = 0

d) Δ ng = -1

22. Paramagnetism is the property of a) Paired electrons

m o c . i a

b) Completely filled electronic subshells

I l A o s i L v l A a k . M w A ww N

c) unpaired electrons

d) Completely vacent electronic sub shells

23. The bond order of nitrogen molecule is a) 1

b) 2

c) 3

d) 4

24. Radioactive element of lanthanide is. a) Thorium

b) Lanthanum

c) Uranium

d) Promethium

25. Semiconductors which exhibit conductivity due to the flow of excess negative electrons are called. a) Super conductors

b) n - type semiconductors

N .A

c) p - type semiconductors

d) Insulators

26. ................. occur in the white matter of the brain and of all nervous tissue. a) Lacithin

R

b) Cephalin

c) Galactolipids

d) Amino acid

27. The organic compound that undergoes carbylamine reaction is. a) (C2H5)2NH

b) C2H5NH2

c) (C2H5)3N

d) (C2H5)4N+I-

28. The intramolecular hydrogen bonding is present in. a) o - nitrophenol

b) m - nitrophenol

c) p - nitrophenol

d) None of the above

29. Intermolecular hydrogen bonds are not present in. a) CH3COOH

b) C2H 5OC 2H 5

c) CH3CH2OH

d) C2H5NH2

30. The compound with garlic taste is. a) H3PO4

b) H3PO3

R.ANNAMALAI

c) P2O3

d) P2O5

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 71

HIGHER SECONDARY SECOND YEAR Chemistry October - 2013 1. When ether is exposed to air for sometime an explosive substance produced is a) Peroxide

b) Oxide

c) TNT

d) Superoxide

2. Among the halogen acids, the weakest acid is a) HF

b) HCl

c) HBr

3. In a reversible reaction 2HI a) greater than Kc

d) HI

H2 + I2 Kp is b) less than Kc

c) equal to Kc

d) zero

4. Change in Gibbs free energy is given by a) Δ G = Δ H + T Δ S

b) Δ G = Δ H -T Δ S

c) Δ G = Δ H x T Δ S

d) Δ G = Δ H / T Δ S

5. The compound that does not undergo Cannizaro reaction is a) Formaldehyde

b) Acetaldehyde

c) Benzaldehyde

d) Trimethyl acetaldehyde

m o c . i a

I l A o s i L v l A a k . M w A ww N

6. An example of ambidentate Ligand is a) NH3 7. C6H5NH2

-

b) H2O

c) NO 2

NaNO2 / HCl

-

X. X is

0oC

a) C6 H5 Cl

d) I

b) C6 H5 NHOH

c) C6 H5 N2 Cl

d) C6 H5OH

8. For a reaction Ea = 0 and K = 4.2 x 10 sec at 300 K, the value of K at 310 K will be 5

a) 4.2 x 105 sec-1 c) 7.4 x 105 sec-1

N .A

-1

b) 8.4 x 105 sec-1

d) 4.2 x 10-5 sec-1

R

9. Which element in Lanthanide is radioactive? a) Cerium

b) Promethium

c) Holmium

d) Lutetium

10. Among the following which has higher electronegativity value? a) Fluorine

b) Chlorine

c) Bromine

d) Iodine

11. In the oxidation of SO2 in contact process the catalytic poison is a) As2O3

b) V2O5

c) Fe2O3

d) CuCl2

12. Which of the following compound doesn’t show tautomerism? a) Nitro benzene

b) Nitromethane

c) Nitro ethane

d) 2-nitropropane

13. When one coulomb of electricity is passed through an electrolytic solution, the mass deposited on the electrode is equal to. a) equivalent weight

b) molecular weight

c) electrochemical equivalent

d) one gram

14. The hybridisation in SF6 molecule a) sp3

b) sp3d2

c) sp3d

d) sp3d3

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

R.ANNAMALAI

Page : 72

15. Electrophile used in nitration of benzene is a) Hydronium ion

b) Sulphonic ion

c) Nitronium ion

d) Bromide ion

16. IUPAC name of phenetole is a) Phenoxy benzene

b) ethoxy benzene

c) Methoxy benzene

d) Propoxy benzene

17. In the following radioactive decay 92X232 a) 3α, 3β

b) 5α, 3β

Y220 how many α and β particles are ejected.

89

c) 3α, 5β

d) 5α, 5β

18. Electrophoresis is a ________ property of a colloid. a) Optical

b) Kinetic

c) Electrical

d) Magnetic

c) two gases

d) one solid and one liquid

19. An emulsion is a Colloidal solution of a) two solids

b) two liquids

20. Silver salt used in Photography is a) AgCl

b) AgNO3

c) AgF

d) AgBr

21. Proteins are. a) Polypeptides

m o c . i a

I l A o s i L v l A a k . M w A ww N b) Polyacids

c) Polyphenols

22. The molecular orbitals are filled according to a) Pauli’s exclusion principle

b) Hund’s rule

c) Aufbau principle

d) All the above

d) Polyester

23. Which one of the following crystal has 8:8 structure? a) MgF2

b) CsCl

c) KCl

d) NaCl

24. A ‘d’ block metal ion has a magnetic moment of 1.732 BM. The number of unpaired electrons are a) 1

b) 2

N .A c) 3

d) 4

25. The SI unit of entropy is...........(ANSWER :d) a) Cal K-1 mol-1

R

b) erg K-1 mol-1

c) J deg-1 mol-2

d) J K-1 mol-1

26. Cephalins have been implicated in the process of a) Metabolism

b) Organisation of the body

c) Blood purification

d) Blood coagulation

27. _________ forms oxocations. a) Lanthanides

b) Actinides

c) Noble gases

d) Alkali metals

28. The rate constant of the forward and reverse reactions are 8 x 10-5 and 2 x 10-4 respectively, Kc is__________ a) 0.004

b) 0.02

c) 0.2

d) 0.4

29. The acid that cannot be prepared by grignard reagent is a) Acetic acid

b) Formic acid

c) Butyric acid

d) Benzoic acid

30. When phenol is distilled with Zn dust it gives. a) benzaldehyde

b) benzoic acid

c) toluene

d) benzene

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

R.ANNAMALAI

Page : 73

www.kalvisolai.com

�����������������

PTA - ��� ������������� I-V ������

m o c . i I a l A iso L

v l A a k . M w A w N w N

A . R

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHEMISTRY), GOVT. GIRLS HR. SEC. SCHOOL GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT e mail: sss smalai@ g mail.c o m.

www.kalvisolai.com

HIGHER SECONDARY SECOND YEAR Chemistry PTA-Model Question paper -I Choose and write the corret answer

30x1=30

1. En = -313.6/n2, If the value of Ei = -34.84 to which value ‘n’ corresponds to (a) 4

(b) 3

(c) 2

(d) 1

2. The bond order of nitrogen molecule is (a) 2.5

(b) 3

(c) 2

(d) 4

3. Noble gases have ..................... electron affinity (a) High

(b) low

(c) zero

(d) very low

4. The shape of XeF4 is (a)Tetrahedral

(b) Octahedral

(c) square planar

(d) Pyramidal

m o c . i a

5. Copper is extracted from

I l A o s i L v l A a k . M w A ww N

(a) Cuprite

(b) copper glance

(c) Malachite

6. silver salt used in photography is (a) AgCl

(b) AgNO3

(c) AgF

(d) Copper pyrites

(d) AgBr

7. The most common oxidation state of Lanthanides is (a) +2

(b) +1

(c) +3

(d) +4

8. __________ is used in gas lamp material (a) MnO2

(b) CeO2

(c) N2O5

N .A

(d) Fe2O3

9. The geometry of [Ni(CN)4]2- is (a) Tetrahedral

(b) Square planar

R

(c) Triangular

(d) Octahedral

10. Which of the follower is used as neutron absorber in nuclear reactors? (a)Water

(b) Deuterium

(c) Uranium

(d) Cadmium

11. The number of Chloride ions present per unit of CSCl ? (a) 6

(b) 8

(c) 1

(d) 4

12. In an adiabtic process Which of the following is correct? (a) q=w

(b) q=0

(c) Δ E=q

(d) p Δ v=0

13. When a liquid boils, there is (a) an increase in entropy

(b) a decrease in entropy

(c) an increase in heat of vapourisation

(d) an increase in free energy

14. State of chemical equilibrium is (a) Dynamic

(b) Stationary

(c) Both (a) & (b)

(d) None

15. For an endothermic equilibrium reaction, if K1and K2 are the equilibrium constants at T1 and T2 temperatures respectively and if T2>T1,then (a) K1
(b) K1>k2

(c) K1=K2

(d) None

16. The unit of zero order rate constant is (a) sec-1

(b) mol lit-1 sec-1 R.ANNAMALAI

(c) mol sec-1

(d) lit2 sec-1

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 74

www.kalvisolai.com 17. Oil soluble dye is mixed with emulsion and emulsion remains colorless then, the emulsion is (a) O/W

(b) W/O

(c) O/O

(d) W/W

18. Colloids are purified by (a) Precipitation

(b) coagulation

(c) Dialysis

(d) Filtration

19. Fe(OH)3 colloidal particles adsorb __________ ions (a) Fe3+

(b) Mg2+

(c) Ca2+

(d) Cu2+

20. Ostwald’s dilution law is applicabe to the solution of (a) CH3COOH

(b) NaCl

(c) NaOH

(d) H2SO4

21. The reaction of lucas reagent is fast with (a) ethanol

(b) methanol

(c) 2-propanol

(d) 2-methl 2-propanol

22. An Organic compound C4H10O When heated with excess HI gives Only one type of alkyl iodide. The compound is (a) diethylether

m o c . i a

(b) methyl n-propylether

I l A o s i L v l A a k . M w A ww N

(c) methyl iso propylether

(d) n-butyl alcohol

23. When ether is exposed to air for sometime an explosive substance prpduced is (a) peroxide

(b) Oxide

(c)TNT

(d) superoxide

24. The compound that does not undergo cannizzaro reaction is (a) Formaldehyde (b) Acetaldehyde (c) Benzaldehyde

(d) Trimethyl Acetaldehyde

25. Which oi the following is least acidic? (a) C2H5OH

N .A

(b) CH3COOH

(c) C6H5OH

(d) ClCH2COOH

26. Nitration of nitrobenzene at 373K results in

R

(a) O-dinitro benzene (c) P-dinitro benzene

(b) 1,3,5-trinitro benzene (d) m-dinitro benzene

27. Primary amine acts as (a) Electrophile

(b) Lewis base

(c) Lewis base

(d) Free radical

28. Which of the following will not undergo diazotisation? (a) m-toluidine

(b) anline

(c) p- amino phenol

(d) benzylamine

29. Important constituent of cell wall is (a) Lipid

(b) Cellulose

(c) Protein

(d) Vitamin

(c) Starch

(d) cellulose

30. The most abundant carbohydrate is (a) glucose

(b) fructose

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 75

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HIGHER SECONDARY SECOND YEAR Chemistry PTA-Model Question paper -II

1.de-Broglie equation is mv (a) λ= h

hv (c) λ= m

(b)�λ=hmv

h (d) λ= mv

2. The hybridisation in SF6 molecule is (a) sp3

(b) sp3d2

(c) sp3d

(d) sp3d3

3. Across the period, electron affinity generally (a) decreases

(b) increases

(c) decreases and increases

(d) increases and then decreases

4. Which has least melting point? (a) B

(b) Al

(c) Ga

m o c . i a

(d) In

I l A o s i L v l A a k . M w A ww N

5. Formation of coloured ions is possible when metal ions contain (a) paired electrons

(b) unpaired electrons

(c) lone pairs of electrons

(d) none of the above

6. The value of magnetic moment of Ti3+ ion is (a) 0

(b) 1.73

(c) 2.83

(d) 3.87

7. The lanthanide contraction is due to

(a) perfect shielding of 4f electrons

(b) Imperfect shielding of 4f electrons

(c) perfect shielding of 3d electrons

(d) Imperfect shielding of 3d electrons

N .A

8. The actinide that exhibits oxidation state +6 is (a) Ac

R

(b) Th

(c) Pa

(d) U

9. The geometry of [Fe(CN)6]4- is a) tetrahedral

b) Square planar

10. In the nuclear reaction, 92U238 a) 7α, 5β

c) triangular

d) Octahedral

Pb206 the number of α and β particles emitted are

82

b) 6α, 4β

c) 4α, 3β

d) 8α, 6β

11. Frenkel defect is found in a) Nacl

b) AgCl

c) CsCl

d) FeS

12. Which of the following does not result in an increase in the entropy ? a) Crystallisation of sucrose from solution

b) Rusting of iron

c) conversion of ice to water

d) Vapourisation of Camphor

13. If Δ G for a reaction is negative, the change is a) Spontaneous b) Non-Spontaneous c) Reversible d) All of these 14. If the equilibrium constants of the following reactions are 2A B is K1and B K2, then 1 1 2 a) K1=2K2 b) K1= c) K2= ( K1 )2 d) K1= K2 K2 15.At chemical equilibrium 1 a) Q > Kc b) Q < Kc c) Q = Kc d) Q = K c R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

2A is

Page : 76

www.kalvisolai.com 16. The half life period of a first order reation is 10 minits. then its rate constant is a) 6.93 x 102 min-1

b) 0.693 x 102min-1

c) 0.693 x 102min-1

d) 69.3 x 10-1 min-1

17. Somke is a colloidal solution of a) gas in liquid

b) liquid in gas

18. 2SO2 + O2

c) gas in solid

d) solid in gas

2SO3 Homogeneous catalyst for this reaction is

a) Pt

b) V2O5

c) NO

d) As2O3

19. Which one of the following is used in the Purification of drinking water? a) colloidion

b) alum

c) silver bromide

d) chromium salt

20. The specific conductance of 0.01M solution of KCL is 0.0014 ohm-1cm-1 at 250C. It’s equivalent conductance is a) 14ohm-1-cm2 equi-1

b) 140ohm-1-cm2 equi-1

c) 1.4ohm-1-cm2 equi-1

d) 0.14ohm-1-cm2 equi-1

m o c . i a

21.An alcohol which dose not undergo dehydrogenation when passed Over heated Cu at 573K is a) n- butyl alcohol

I l A o s i L v l A a k . M w A ww N b) sec- butyl alcohol

c) iso- butyl alcohol

d) tert- butyl alcohol

22.When ethyl iodide is treated with dry silver oxide it forms a) ethyl alcohol

b) diethyl ether

c) silver ethoxide

d) ethyl methyl ether

23. A reaction of ether in which α hydrogen atom involves a) halogenation

b) peroxide formation

c) oxonium salt formation

d) all of these

N .A

24. Decolourised Schiff’s reagent gives pink colour with a) acetone

b) acetaldehyde

R

c) ethyl alcohol

d) methyl acetate

25. Acetyl chloride cannot be prepared from acetic acid using a) PCl5

b) PCl3

c) SOCl2

d) NaCl

26. Electrophile used in the nitration of benzene is a) hydronium ion

b) sulphuric acid

c) nitronium ion

d) bromide ion

27. Nitro benzene on reduction using tin and hydrochloric acid gives a) aniline

b) phenyl hydroxyl amine

c) hydrazo benzene

d) azobenzene

28. An organic compund ‘A’ with molecular formula C3H9N neither give nitrogen nor yellow oily liqyid with HNO2. Then ‘A’ is a)CH3CH2CH2NH2

b) CH3- CH2- NH - CH3

c) CH3-N-CH3

d) All of these

CH3 29. A mono saccharide among the following is a) Sucrose

b) Cellulose

c) Maltose

d) Glucose

30. which is not true of an amino acid? a) amino acid foms zwitter ion

b) has isoelectric point

c) dual behaviour

d) amino acid is insoluble in NaOH solution

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 77

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HIGHER SECONDARY SECOND YEAR Chemistry PTA-Model Question paper -III 1. The energy of electron in an atom is given by En= - 4 2e2m - 4 2me4 - 2 2me4 - 2 2me2 a) b) c) d) n2h2 n2 h 2 n2 h 2 n2 h 2 2.Bond order in oxygen molecule is a) 0

b) 1

c) 2

d) 3

3. The Element with the highest electron affinnity is a) fluorine

b) chlorine

c) bromine

d) iodine

4.The shape of PCl5 is a) trigonal pyramidal

b) trigonal bipyramidal

5. The correct outer electronic configuration of copper is a) 3d9 4s2

d) terahedral

m o c . i a

I l ) A o s i L v l A a k . M w A ww N b) 3d10 4s1

c) 3d4 4s2

6.The maganetic moment of V3+ ion is b) 2 ) 2 BM

a) ) 3 BM

c) linear

c) 0

d) 3d54S1

d) 35 BM

7.In f-block elements the following shells are incomplete a) n

b) (n-1)

c) (n-2)

d) all the above

8.__________ from oxocations a) Lanthanides

b) Actinides

c) Noble gases

N .A

d) Alkalimetals

9. Which is not an anionic complex? a) [Cu(NH3)4]Cl2

b) K3[Fe(CN)6]

R

c) K4[Fe(CN)6]

d) K2[Zn(CN)4]

10. Loss of β- particles is equivalent to a) increase of one proton only

b) decrease of one neutron only

c) both (a) and (b)

d) none of these

11. A regular three dimensional arrangement of identical points in space is called a) unit cell

b) space lattice

d) crystal lattice

Cl2(g) the sings of Δ H and Δ S respectively are

12. For the reaction 2Cl(g) a) +,-

c) isomorphism

b) +,+

c) -,-

d) -,+

13. All naturally occuring processes proceed spontaneously in a direction Which leads to a) decrease in entropy b) increase in enthalpy c) increase in free energy

d) decrease in free energy

14. The active mass of 28g of nitrogen in 2 litres is a) 1 M b) 0.5 M c) 2 M

d) 4 M

15. The catalyst used in the Synthesis of SO3 by contact process is a) Fe b) I2 c) Mo d) V2O5 16. For a reaction aA bB the rate of a reaction is incresed by twice when the concentration of the reactant is increaesed by four times. The rate equation is Rate= 1

a) K[A] 2

3

b) K[A] 2 R.ANNAMALAI

c) K[A]4

d) K[A]2

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 78

www.kalvisolai.com 17. Fog is a colloidal solution of a) gas in liquid

b) liquid in gas

c) gas in soild

d) soild in gas

18. The migration of colloidal particles under the influence of electric fleld is known as a) dialysis

b) cataphoresis

c) electro- osmosis

d) electro dialysis

19. principle of cottrell smoke precipitator is coagulation by a) addition of electrolyte

b) addition of oppositely charged colloid

c) oppositely charged electrode

d) all of these

20. A solution which is resistant to change of pH on addition of small amount of an acid or a base is known as a) buffer solution

b) true solution

c) neutral solution

d) ideal solution

21. When phenol is heated with Zinc dust it gives a) benzene

b) 2,4,6 - trinitro benzene

c) 1,3,5 - trinitro benzene

d) no reaction

m o c . i a

I l A o s i L v l A a k . M w A ww N

22. Oxygen atom of ether is a) very reactive

b) replaceable

c) oxidising

d) comparatively inert

23. When an ether ‘A’ is treated with hot concentrated hydroiodic acid gives only ethyl iodide. then A is a) diethyl ether

d) methyln-propyl ether

c) methyl isopopyl ether

d) all of these

24. The compound which does not reduce Fehling’s solution is a) formaldehyde c) benzaldehyde

b) acetaldehyde

N .A

d) propionaldehyde

25.The isomerism exhibited by CH3CH2COOH and CH3COOCH3 is a) metamerism

R

b) position

c) chain

d) functional

26. The basic character of amines is due to a) tetrahedral structure

b) presence of nitrogen atom

c) lone pair of electrons on nitrogen atom

d) high electronegativity of nitrogen

27. When aqueous solution of benzene diazonium chloride is boiled the product is a) benzyl alcohol

b) benzene and nitrogen

c) phenol

d) phenyl hydroxyl amine

28. IUPAC name of methyl cyanide is a) methane nitrile

b) aceto nitrile

c) ethane nitrile

d) cyano methane

29. primary structure of proteins refers to a) the amino acids present

b) the shape of protein

c) the peptide bond

d) the sequence of amino acid

30. Sucrose is a non reducing disaccharide, because a) C1of glucose is bonded to C1of fructose

b) C2 of glucose is bonded to C1of fructose

c) C1 of glucose is bonded to C2of fructose

d) C2 of glucose is bonded to C2of fructose

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

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HIGHER SECONDARY SECOND YEAR Chemistry PTA-Model Question IV 1. If the energy of an electron in the second Bohr orbit of H-atom is -E What is the energy of the electron in the first orbit? a) 2E

b) -2E

c) -4E

d) 4E

2. The type of hybridisation in CO32- ion is a) sp

b) sp2

c) sp3

d) sp3d

3. When XA>>XB, A-B bond is a) polar covalent

b) non - polar covalent

c) lonic

d) metallic

4. Which shows only -1 oxidation state? a) fluorine

b) bromine

c) chlorine

d) iodine

m o c . i a

5. Paramagnetism is the Property of a) Paired electrons

I l A o s i L v l A a k . M w A ww N b) Completely filled electronic sub-shells

c) unpaired electrons

d) completely vacant electronic sub- shells

6. Which of the following is not coloured? a) [Cu(NH3)4]2+

b) [CdCl4]2-

c) K4[Fe(CN)6]

d) K2[Cu(CN)4]

c) 6d electrons

d) 7s-electrons

7.Actinide contraction is due to imperfect shielding of a) 4f electrons

b) 5f electrons

8. The lanthanide contraction is responsible for the fact that

N .A

a) Zn and Y have about the same radius

b) Zr and Nb have similar oxidation state

c) Zr and Hf have about the same radius

d) Zr and Zn have the same oxidation state

R

9. The type of hybridisation of the central metal ion in the complex [Ni(CN)4]2- is a) sp3

b) sp3 d

c) d sp2

d) d sp3

10. The most penetrating radiations are a) α -rays

b) β-rays

c) r-rays

d) all are equally penetrating

11. In a simple cubic cell each point on a corner is shared by a) one unit cell

b) eight unit cell

c) four unit cell

d) two unit cell

12. Which of the following, the process is always non feasible a) ΔH >0,ΔS>0

b) ΔH <0,ΔS>0

c) ΔH >0,ΔS<0

d) ΔH <0,ΔS<0

13. The standard free energy value (Go) of formation of an element in its stable state is a) Zero

b) negative

c) positive

14. In the reversible 2HI

H2 + I2 Kp is

a) greater than kc

b) less then kc

c) equal to Kc

d) unpredictable d) zero

15. Two moles of ammonia gas introduced into a previously evacuated 1.0 dm3 vessel in which it partially dissociates at high temerature. At equilibrium 1.0 mole of ammonia remains The equilibrium constant Kc for the dissociation is a) 27/16 ( mol dm-3 )2 b) 27/8 ( mol dm-3 )2 c) 27/4 ( mol dm-3 )2

d) None of these

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 80

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16. 2N2 O5

4NO2 + O2 , -

d[N2O5]

= K1[N2O5]

dt d[NO2] dt

= K2[N2O5] and

d[O2] dt

= K3[N2O5] the relation between K1,K2 and K3 is

a) 2K1=4K2=K3

b) K1=K2=K3

c) 2K1=K2=4K3

d) 2K1,=K2=K3 17. The Tyndall effect associated with colloidal particles is due to a) presence of charge

b) scattering of light

c) absorption of light

d) reflection of light

18. In the case of physical absorption, there is desorption when a) temperature increases

b) tempereature decreases

c) pressure increases

d) concentration increases

m o c . i a

I l A o s i L v l A a k . M w A ww N

19. Rubber is obtained by

a) dissolving latex in a suitable solvent b) coagulation of latex

c) evaporation of latex d) all of these

20. The unit of cell constant is a) ohm-1m-1

b) m-1

c) ohm-1m2eq-1

N .A

d) no unit

21. The IUPACname of (CH3)3C-OH is a) 2,2-dimethyl- 1-propanol

b) neopenthyl alcohol

c) 2-methyl -2-propanol

d) Trimethylene carbinol

R

22. Willamson’s synthesis is an example of a) nucleophilic addition

b) electrophilic addition

c) electrophilic substitution

d) nucleophilic substitution

23. 1-Methoxy propane and 2-Methoxy propane are a) metamers

b) position isomers

c) functional isomers

d) chain isomers

24. Acetophenone and benzophenone can be distinguished by a) lucas test

b) ferric chloride solution

c) iodoform test

d) carbylamine test

25. The acid that reduces Tollen’s reagent is a) methanoic acid

b) oxalic acid

c) salicylic acid

d) oleic acid

26.When nitro methance is condensed with acetone it gives a) 1-nitro-2-propanol

b) 1-nitro-2-methyl-2-propanol

c) 1-nitro-2-methoxy propane

d) no reaction

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 81

www.kalvisolai.com 27. Nitrobenzene on electrolytic reduction in conc sulphuric acid the intermediate formed is a) C6H5-NH-NH-C6H5

b) C6H5NH OH

c) C6H5-N=N-C6H5

d) C6H5HSO4 O

28. The isomerism exhibited by CH3- CH2- N a) position

b) chian

and CH3- CH2- O - N=O is

O c) functional

d) tautomerism

c) proilne

d) thyrosine

29.The amino acid without chiral carbon is a) glycine

b) alanine

30. In acid medium amino acids exist in the from of a) cations

b) anions

c) dipolar ions

d) neutral molecules

m o c . i a

I l A o s i L v l A a k . M w A ww N R

N .A

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 82

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HIGHER SECONDARY SECOND YEAR Chemistry PTA-Model question-V 1. Which of the following particle having same kinetic energy, would have the maximum de-Brogile wave length? a) α - Particle

b) Proton

c) β - Particle

d) neutron

2. Which one of the following molecule is paramagnetic? a) H2

b) He2

c) N2

d) O2

3. Among the following Which has maximum ionisation energy a) alkali

b) alkaline earth metals

c) halogens

d) noble gases

4. An element which is in 15th group and third period was burnt in limited supply of air to give oxide A.A is a) NO2 b) P2O3 c) P2O5 d) SO3 5. The correct statement in respect of d-block elements is

m o c . i a

I l A o s i L v l A a k . M w A ww N

a) they are all metals

b) they show variable valency

c) they form coloured ions and complex salts

d) all the above statement are correct.

6. Zn displaces Au from K[Au(CN)2], because a) Zn is more electro positive than Au

b) Au is more electro positive than Zn

c) Zn is more electro negative than Au

d) Atomic mass of Zn is greater than Au

7. The elements in which the extra electron enters (n-2) orbitals are called a) s- block elements

N .A

b) p-block elements

c) d-block elements

d) f-block elements

R

8. Alloys of lanthanides are called as a) mish - metals

b) metalloid

c) plate metals

d) actinides

9. IUPAC name of the complex K3[Cr(C2O4)3]3H2O is a) potassium tri oxalato chromate (III) trihydrate b) triaquo potassium tri oxalato chromate (III) c) potassium tris (oxalato) chromate (III) trihudrates d) potassium tris (oxalato) chromate (III) trihudrate 10. High speed projectiles may chip a heavy nucleus into several fragments in a) nuclear fission reactions

b) nuclear fusion reactions

c) spallation reaction

d) all of these

11. Bragg’s equations is a) nλ =2d sin θ

b) nd =2λ sin θ

c) λd =2n sin θ

d) ndλ =2 sin θ

12. Aliquid which obeys Trouton’s rule is a) H2

b) H2O

c) CH3 COOH

d) CCl4

13. Change in Gibb’s free energy is given by a) Δ G = Δ H +T Δ S

b) Δ G = Δ H - T Δ S

c) Δ G = Δ H x T Δ S

d) none of the above

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 83

www.kalvisolai.com 14. The relation between Kp and Kc of a reversible reaction is a) Kc=Kp(RT) Δng

b) Kp=Kc(RT) Δng

c) Kp=Kc

d) Kp=1/Kc

15. In the equilibrium N2+3H2 process having

2NH3 The maximum yield of ammonia will be obtained with the

a) low pressure and high temperature b) low pressure and low temperature c) high pressure and high temperature d) high pressure and low temperature 16. In a first order reaction, the time taken to react 99.9% of the raection is _________ times its half life period a) two

b) five

c) ten

d) hundred

17. For chemisorption, which is wrong?

m o c . i a

I l A o s i L v l A a k . M w A ww N

a) irreversible

b) it requires activation energy

c) it forms multimolecular layers on adsorbant d) surface compounds are formed

18. An emulsion is a collidal solution of a) two solids

b) two liquids

c) two gases

d) one solid and one liquid

N .A

19.Awrong statement about catalyst is

a) remains unchanged in mass and chemical composition at the end of the reaction.

R

b) only a small quantity is needed

c) they do not affect the position of equilibrium d) they can initiate a reaction. 20. Equimolar solution of which one of the following has greater PH value a) HCl

b) CH3COOH

c) NaOH

d) NH4OH

21.Iso- butyl alcohol when subjected to victor meyer’s test gives a) blue colour

b) red colour

c)violet colour

d) no colour

22. According to lewis concept of acids and bases, ethers are a) neutral

b) acidic

c) basic

d) amphoteric

23. PCl5does not give HCl with a) ethyl alcohol

b) diethylether

c) acetic acid

d) phenol

24. From which of the following tertiary butyl alcohol is obtained by the action of methyl magnesium iodide? a) HCHO

b) CH3CHO R.ANNAMALAI

c) CH3COCH3

d) CO2

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 84

www.kalvisolai.com 25. Which one of the following compound gives violet colour with neutral ferric chloride and also effervescence with sodium bicarbonate? a) aspirin

b) methyl salicylate

c) salicylic acid

d) phenol

26. Which one of the following will not undergo diazotisation? a) m-toluidine

b) aniline

c) p- amino phenol

d) benzyl amine

27. Biphenyl is the product of a) Schotten Bauman’s reaction b) Gomberg reaction c) Friedel craft’s reaction d) sand meyer reaction

m o c . i a

28. During nitration of aniline m-nitro aniline is also formed due to

I l A o s i L v l A a k . M w A ww N

a) meta directing nature of -NH2 group b) protonation of -NH2 group c) +I effect of -NH2 group d) resonance in benzene

29. Inversion of sucrose referes to a) oxidation of sucrose

b) reducation of sucrose

N .A

c) hydrolysis of sucrose, to glucose and fructose d) polymerisation of sucrose

R

30. Which one of the following represents peptide bond O a) - C - NH2

O

b) - C - N H O

c) - C - NH2

d) - C - NH3 -

R.ANNAMALAI

M.Sc (Che).,M.Sc (Psy).,M.Phil.,B.Ed. PGT(CHE), G(G)HSS, GINGEE, DISTRICT SECRETARY, TNHSPGTA, VILLUPURAM DT

Page : 85