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BCECE 2016 First Stage Chemistry Question Paper
51.
Li+ has nearly same size as (A) Mg2+ (B) Be 2+ (C) K+ (D) Cu++
52.
Which one of the following is not soluble in C 2H sOH ?
53.
54.
55.
56.
(A) LiC!
(B) MgC/2
(C) KCf
(D) H 20
62.
heated with soda-lime yields an aromatic hydrocarbon (P) . (X) is : (A) C 6HSCHO (8) C 6H sCH20H
In Castner-Kellner cell, the following works as cathode (A) Hg (B) Na tr) (D) Cu ,-, C Dolomite contains (A) AI, Mg (C) Mg only
(C) C 6 H6
(B) Ca,Mg (D) Al only
Which one is more likely to show + 1 oxidation state in its compounds? (A) Al (B) B (e) Ga (D) Tl
64.
Which one has minimum enthalpy of formation? (A) Diamond (B) e 60 (C) Graphite
Which one is Chile saltpetre? (8) KN0 3
(C) CO 2 + 2N2
(D) Na 2C0 3
59.
67.
Which one is used in supercritical foml for extraction of compounds ii·om their natural sources? (A) N z (8) COz (C) Hz
Which one of the following has Carbon in both sp2 and sp states ? (A) (CH3)2CO (B) CH 3CN (D) CH 3 -CH3 Nylon 6,6 is a (A) Polyolefin (C) Polyester
(D) N2 + H 20
This one is the cause of temporary hardness of water (A) Na 2C03 (8) NaHC0 3 (e) Mg(He0 3)2 (D) K 2C0 3
How many 0' bonds are there in CH==C-CH=CH-CH 3 ? (A) 4 (8) 6 (C) 10 (D) 9
(C) CH3CH=CHCN
60.
(D) Active Carbon
66.
Which one has a role in controlling blood pressure? (A) N 20 (C) N0 2
58.
standard
Which is a producer gas? (A) CO (B) CO + 2N2
(A) NaN0 3
57.
(D) C6HSeH3
63.
Milk of lime contains (B) Ca(OH)2 (A) Citric acid (C) Mg(OH)2 (D) CaCl2
(C) NaC I
A compound (X) on heating with NaOH form (V) [C 7 H80] and (Z). (Z) when
(D) NzO
68.
Which one is called a pseudo-halogen ? (A) N2 (B) (CN)z (C) HeN (D) CaNCN
69.
Given that bond energies of C - H = 414.0, C == C = 827.6, C = C = 606.0 & H - H = 430.5 kJ mol-I, the enthalpy of hydrogenation of C zH 2 (g) to e 2H4 (g) in kJ mol-I will be about (A) 1400 (B) 1200 (C) 176 (D) 500
(B) Polyamide (D) None of these 12
PBE
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51.
Li+ cpr ~ "Wf'lfTT ~
53.
:
~5l1TT?
(A) Nd
(A) LiCf
(B) MgC/2
(C) KCf
(D) H 20
(Y) [C 7H gO]
;S'IC1'IJOjI~c
m
(C) Mg(OH)2
(D) CaCl2
(B) B
(B) KN0 3 (D) Na 2 C0 3
66.
67 • CH == C - CH = CH - CH3 -tr~ cr ~~? (A) 4 (B) 6 (C) 10 (D) 9
f.1+:.1 -tr x?t ~ C GFIT sp2 3tR sp 3lCR~3lt
.
69.
(C) q'f~,,!'{:e'{
(D) ,(11#>~d
Cf>T
(C) CO 2 + 2N2
(D) N2 + H 20
~ VR1 qft 3R~ ~ cpr
:
(B) NaHC0 3 (D) K 2C0 3
~
>nWT ~ Ri wiRi Cf) 3lCR~ -tr -mfi'rCf>T "Cf>T ~ wpRiCf) -mm -q ~ PtlSCf)qul ~ ~ fcP
(C) H2
(D) N 20
ffl ~ 3lT11'Rfi ~ Cf) 5 (>lId I t- ? N2
(B) (CN)2
(D) CaNCN
~~~C-H=414.0,C==C= 827.6,
C = C = 606.0 mol-I -g-,
01
3tR H - H = 430.5 kJ
C 2H 2 (1Rr)
"Cf>T
C 2H 4 (1Rr)
~m~~ 51~~1\Jj;:flCfJ\!OI qft~~
~:
(A) ~~
(D) TI
(B) CO + 2N2
(C) HCN
(D) CH3 - CH3
t-
~ncRf)Cf)\!UI 3lCR~
(A) CO
(A)
(B) CH 3CN (C) CH3CH = CHCN
PBE
68.
?
(A) (CH3)2CO
~-6,6
t- :
(B) C 60
(A) N2 r .
60.
tR ~ "!;:'I~reCf)
I (Z)
~ lJRCf) x:f'lfCR ~~ ~ t- ?
(C) ~.
fflwfuc;fiWffit-?
-tr~t-
m
(C) Ga
(C) Mg(HC0 3)2
59.
-tr +1
~
(A) ~
(B) Ca(OH)2
(A) NaN0 3 (C) NaCl
ffl
(A) Al
:
(A) ~~
(Z).
3lR'IFft ~ ~ ?
(B) Ca, Mg (D) ~Af 64.
58.
(D) Gd
(B) C 6HsCH20H (D) C6HSCH3
(C) C6H6 63.
fTR;cp 3WP ~ -tr iRrr t-
ll1f
(A) C 6HsCHO
-tr l?R't -g- :
(A) AI, Mg (C) ~Mg
56.
(C) Yb
i3l~~1Cf)14'1 (P) cpr ~ Cj)«fT t- I (X)
(B) Na (D) Cu
(C) C
3tR
'(f1;S1C1I~JOj ~ ~
~-~ -ffi;r -tr f.1+:.1 $~ cpr cpllf Cj)«fT
(A) Hg
55.
(B) Lu
f.1+:.1-tr x?t ffl C 2H SOH -tr ~ -;ffif t- ?
t-:
54.
~ M3+ cpr ~ ~
-tr x?t
(B) Be2+ (D) Cu++
(A) Mg2+
52.
BCECE 2016 First Stage Chemistry Question Paper
(B) qlT~,,!JOjI~;S (D) ~x?t~'4t-;ffif
kJ mol-I
-tr"Wf'lfTT M :
(A) 1400 (B) 1200 (C) 176
13
(D) 500
C
~.
I
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71.
72.
73.
BCECE 2016 First Stage Chemistry Question Paper
Which one of the following electrophile ? (A) BF3
(B) HS-
(C) (CH 3)3 N
(D) NH2
one electrophilic .centre one nucleophilic + one electrophilic centres.
Which one has the highest melting point? (A) Pentane (B) 2-Methylbutane (C) 2, 2-Dimethylpropane (D) n-hexane
79.
Which one does not have different conformations? (A) Ethene (C) Cyclohexane (D) Hexane
01\
ov.
(A) 10 ppm
(B) 1 ppm
(C) 2 ppm
(D) 5 ppm
75.
81.
(B) Pb
(C) Hg
(D) P043-
The Ostwald simple dilution formula is (A) a=.yKV
(D) C\3-C I8
Which kind of coal has a 40% C ? (A) Anthracite (B) Bitumen (C) Lignite (D) Peat
82.
l-cyclohexyl-4-methylhexa-l, 3-diene upon ozonolysis gave cyclohexanal as one product, another product is (A) Ethyimethyl ketone (B) Acetone (C) Diethyl ether (D) Hexanal
83.
84. 76.
Which one is a m-directing group during substitution reactions on benzene ring? (A) - COOH {tl) - NH2 (C) - OCH 3
77.
D
(D) - CH3 85.
How many structural isomers of C3H60 are possib Ie ? (A) 3 (C) 5
in water, it causes
(A) Cd
(C)
74.
nt'\l1l1t~nt p~u~.~ •••
As a
eutrotication
Diesel is the fraction obtained during petroleum fractionation with the hydrocarbons with carbons in the following range: IA" I"' r (B) Ci-C q 1,1"\.)· VS - '-"10 (C) C IO -C\3
What is the concentration of P- beyond which it is dangerous in drinking water?
(B) 4 (D) 6
14
a
= K 2V
(B) a= K~ (D)
a
=
-.JK ·V
The "grape sugar" is (A) Starch
(B) Giucose
(C) Maltose
(D) Galactose
Which one of these is not a protein ? (A) Haemoglobin
(B) p-Carotene
(C) Trypsin
(D) Silk
Which one of the following could be the molecular fommla of Vitamin A ? (A) C 20H 300
(B) C12HISN4Ci20S
(C) C17H20N406
(D) C9H 170 sN
Ammonium molybdate is used during lassaigue's test for the following (A) Cl
(B) N
(C) Br
(D) P PBE
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71.
BCECE 2016 First Stage Chemistry Question Paper
(A) BF3
(B) HS-
(C) (CH3)3N
(D) NH2
~~~m?
(C) ~ ~<9tctth<-4l:ft ~
(A) ~
(D) ~~ + ~ ~<9tcttT'1,<-4g) ~
(8) 2-~~
79.
(C) 2,2-~~
F- ~ ~ ~
\Jfc;r if ~ 3lfucp iA ~ gIPi¢I'<¢ iRfi%-
(D) n-~
:
(A) 10 ppm (C) 2 ppm
(A) ~2ft;=r
(8) ~$T In\ \L-'J
73.
q~I~Wl ~ ~
frr:;r \Jfc;r ~ ~
:
~ " ....
"1
I
>T'lfTVI1 if ~ if ~
g IlH~1 ¢ 14·-t'i ~ ~
75.
80.
(8) 1 ppm (D) 5 ppm
(A) Cd
(8) Pb
(C) Hg
(D) PO~-
(A) a=vKY (C) a= K2y
(8) a= K~
xrum
(A) CS-C IO (C) C 10 - C l3
(8) C 7 - C 9 (D) C 13 - CIS
(A) ~~
(8) ~
(C) ~''1I~C:
(D)
82.
(D) a=-J"K.y
Si1aT-~%-:
(A) Rrrt
(B) ~
(C) ~
(D) ~c1CfCliJ1
~~ifq.:mfi%-, ~~m:
(A) 51'11' C1141'1
(8) ~-~
(A)~~
(C) ~
(D)
j-'<11~q:C't'lgr
1:\tc
- 4 - itt~ -1, 3 -
~ ~ ~ ~ '<11~Q'('11gCf<~'1C1 ~
m
(8) ~
84.
(C) ~t2R
frr:;r if ~ Cfi'R "'<11 fctcrf11;:r A
(D) gcf'HI'1C1
(8) CI2HISN4C/20S
(C) CI7H20N406 (A) -COOH
(8) - NH2
(C) - OCH
(D) - CH3
3
85.
eM WaTUT GRR
3l'11Pill'1 '1~~
mITrr ~ WaTUT ifJ ~ fcf>m \JffifT %- : (A) 3
PBE
(8) 4
(C) 5
(A) CI (C) Br
(D) 6
15
(8) N (D) P
c
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www.myengg.com 86.
BCECE 2016 First Stage Chemistry Question Paper
For the reaction 2H 20z --7 2H which one is correct? 1 d[02] d[~I202] (A) 2~=: dt (B)
iF ., I or A g2 0 {s)
87.
88.
X + HN0 3 --7 Pb(N03)2 + H 20 + 02' X is
89.
90.
(C) Pb(e0 3 )4
(D) PbS 2
()
96.
The maximum number of ions possible in an ionic micelle is (A) 10 (B) 100 (C) 1000 (D) 20
97.
Zeise's salt contains (B) Fe (A) eu (C) Pt (D) Au
98.
The product of aldol condensation between 2 molecules of acetaldehyde is (A) Crotonaldehyde (B) Butyraldehyde (C) Butyric acid (0) Pentanoic acid
99.
Williamson's synthesis IS used preparation of an (B) acid (A) alcohol (C) amine (D) ether
n1-A
ruv2
Carboxylic acids are prepared reaction of Grignard reagent with (A) H 20 (B) ROH
~ 2"'2 ,g"
The scattering: of light by a colloidal dispersion is known as (A) Newton effect (B) Bohr effect (C) Tyndall effect (D) Green effect
In the unbalanced equation
IB)' \
'
95.
(D) S
(A) Pb
-'-
In a solid AB with NaCl structure, radius of the A+ = 120 pm, the maximum possible value of S- will be : (B) 300 pm (A) 430 pm (C) 120 pm (D) 229 pm
dt
Which one of these will not fonn multimolecular colloid? (B) Starch (A) Fe(OH)3 (e) AS 2 S3
\
94.
d[Ol] _. d[H 20 2J --
I
30.54 kJ/mol and l:1S = 0.06 kJK- i mol- I at I atm. At this temperature, the reaction wil! be at equilibrium (A) 463 K (B) 273 K (C) -273 K (D) 420 K
d[02] _ d[llz02] dt dt
dt
A
.~ ~H =
d(02) ___ 1 d[H 20 2] (C) dt - 2 dt (D)
. '"
-7~J-\g \s,
by
The possible values of m for an electron with 1= 1 are (A) -1,0, + 1 (B) 0, + 1 (C) -1,0
(D) -2,-1,0,+1,+2 91.
The rate constant of a reaction is 2 x 10-2 L mol-iS-i, The order of the reaction is
(A)
°
(C) 2
92.
a
for
(B) 1
100. The E~cll for Zn IZn+2 (aq) II Ni 2+ (aq) I Ni
(D) 3
is
The product of XeF4 + SbFs is :
(E~nc' (at!) I zn = -- 0.76 V, E~? ("4) I Ni = - 0.25 V) :
(A) (XeF3] (SbF 6) (B) [XeF4] [SbFs) (e) [XeF 2] (SbF 7] (D) [XeFs] [SbF4]
(A) + 0.51 V (C) - 1.1 V 16
(B) + 1.1 V (D) - 0.51 V
PBE
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87.
BCECE 2016 First Stage Chemistry Question Paper
d[O')] (D) ~=
d[H 20 2] dt
f.1r:;f if it q>R q.:m)-lf[ ?
m
(A) Fe(OH)3
A+ Cf>T 3T~ = 120 pm, B - Cf>T ~i<'1llt!Cf> -ft~ "lfR 5T1lT
"&S~q; ~~ ;:ffit
(A) 430 pm
(B) 300 pm (D) 229 pm
(e) 120 pm
R-ffl.
(B)
:
95.
WPm ~ -;:;IT lfifi Cf)lC1T~t11:fft~ ~ ~
6Tffit ,Cffi Cfl6C1ldit : 88.
31fi'1R1d X1~
(A) ~>P1TCf
(B)
X + HN0 3 ~ Pb(N03 )2 + H20 + 02 if
(e) ~>J~
(D) ~>J'l1fCT
xt
96.
(A) Pb (C) Pb(C0 3)4
89.
(A) 10 97.
Cf>i! ~ ~ ~ f.fq ~
(A) H 20 (C) CO2
90.
qft~t
(B) Pb0 2 (D) PbS 2
~fumrCJR"~~%
(B) ROH
98.
(D) CH 3CN
t ,~
X
(A)
(C)
92.
(B) 1
99.
,rt,
11"\£\£\
IT"'\.\.
""'/\
tLJ IVVV
~LJJ
(C) Pt
(D) Au
.,:.v
(B) Fe
:
'1RRCfi ~
I~~
(C) 2
XeF4 + SbF 5 Cf>T ~ t
rqR1~JOfI1 ~ ~ ~ ~ ~ Cf>T11
if
<11m \1fTdT ~ :
qft
(A)~
(B)
(e) ~
(D) t~
~
100. Zn IZn+ 2 (aq) II Ni2+ (aq) I Ni ~~ E~cll
(D) 3
Cfll15T1lT, ~
:
( EO1.11-,.( aq ) I.zn = -
(A) [XeF 3] [SbF 6] (B) [XeF4] [SbF s] (C) [XeF2] [SbF7 ] (D) [XeFs] [SbF4 ] PBE
(B) iVO
(D) ~"C11'1&Cf> 3f~
°
10- 2 L mol-iS- i t
°
:
(B) '1fMf(Y~
lfifi ~(f>l~~
2
3lTll"1l
(A) wkT~lBgl&;S
m ~
(D) -2, -1, 0, + 1, + 2 91.
-ft~
Qi(fl~8s6i~'5 -$ 2 ~3lt-$cft-if~~ Q?T~~
(A) -1,0,+1 (B) 0, + 1 (C) -1,
if ~
~-$(WJfif~: (~) eu
:
lfifi ~A~T1 ftmcw· I = 1 -ft1lTfclq 1={Ff f.ITit :
lfifi ~ .~
m-srmcr
(A) + 0.51 V (C) -1.1 V
17
0.76 V, E~)'(aq) 1Ni ,I
= -
0.25 V) :
(B) + 1.1 v (D) -0.51 v
II
I I
1
rI
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