Subject: Chemistry Topic : Carbonyl Compounds Unit : Aldehydes
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Name of the Teacher: Name of the School : Standard : XI Class Strength :
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Model Lesson Plan
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I. Instructional Objectives : The Student 1. acquires knowledge about the aldehydes 2. understands the preparation, properties and uses of formaldehyde 3. applies the knowledge to give new example for aldehyde 4. develops skill in observing and writing the formulas 5. develops interest in knowing more about formaldehyde and its reactions 6. develops scientific attitude towards the study of aldehydes
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II. Specifications: The Student 1. recalls the general formulae of alcohol and preparation of alcohol 2. recognizes the sources, preparation , properties of aldehyde 3. classifies the types of aldehyde 4. observes the equation for preparation of aldehyde 5. writes the equation for preparation of acetaldehyde 6. describes the reactions of formaldehyde 7. gives reason for formaldehyde reactions 8. identifies the uses of formaldehyde in daily life 9. shows curiosity to know about the various uses of formaldehyde in industrial field
III. Teaching Aids: The chart containing the tabular column for common name and IUPAC name of Aldehydes.
Date: Duration:45 minutes Period:
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Content If hydrogen from hydrocarbon- replaced byHydroxyl group- alcohol
Learning experiences What are alcohols?
recalls
By hydration of alkenes
How will you prepare alcohol say any one method?
recognizes
RCHO
Write the general formulae for aldehyde
cites examples
Formaldehyde Acetaldehyde Benzaldehyde
classifies
Formaldehyde and Acetaldehyde- Aliphatic aldehyde. Benzaldehyde- Aromatic aldehyde
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RCH2OH--------->RCHO+H2O
writes equation
CH3CH2OH------- >CH3CHO recognizes describes
What are aldehydes?
Can you give example for aldehydes
Classify aliphatic and aromatic aldehydes from above examples
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observes
Evaluation
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Specifications recalls
Methanol on controlled oxidation at 878923K gives formaldehyde Formaldehyde on oxidation gives formic acid.
See the equation for preparation of aldehyde
Write the equation for preparation of acetaldehyde Explain the method for preparation of formaldehyde? Describe the oxidation and reduction reaction of
Give an example for aromatic aldehyde. Give an example for aralkyl aldehyde. What are the reagents used for preparation of formaldehyde?
Methanol on oxidation gives ____ Formic acid can be prepared by oxidation of (i) acetaldehyde (ii) formaldehyde
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formaldehyde
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Formaldehyde on reduction gives methyl alcohol
shows curiosity
Formaldehyde is only the aldehyde which answers for acid test and aldehyde test
Why formaldehyde answers for acid test?
Propionaldehyde Benzaldehyde
_______ is used in preparation of varnishes. Why Acetaldehyde doesnot answer for acid test? Draw the structure of Urotropin
See the uses of formaldehyde in medicinal and industrial field
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Urotropin prepared from formaldehyde is used for urinary antiseptic
What are the uses of aldehyde in daily life?
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In dyes, varnishes paint preparation and also used as disinfectant.
gives reason
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uses
(iii) (iv)
1. How will you prepare formaldehyde? 2. Write the various properties of formaldehyde?
... properties of formaldehyde? Signature of the Student teacher Signature of the Guide teacher. www.asiriyar.com. Page 3 of 3. AITP - Chemistry Hr.Sec.pdf.
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