How will you bring about the following conversion in not more than two steps? Benzoic acid to m-Nitrobenzyl alcohol

Benzoic acid to m -Nitrobenzyl alcohol: In the conversion of Benzoic acid to m-Nitrobenzyl alcohol, the first step involved is the reduction of benzoic acid in the presence of LiAlH 4 followed by hydrolysis to give benzoyl alcohol. The product formed undergoes nitration by reacting with nitric acid in the presence of sulphuric acid to give m-Nitrobenzyl alcohol.

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12th CBSE

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How will you convert ethanal into but- $2$ -enal compound ?

Important Questions on Aldehydes, Ketones and Carboxylic Acids

EASY

12th CBSE

IMPORTANT

Chemistry Part 2 Textbook for Class 12>Chapter 3 - Aldehydes, Ketones and Carboxylic Acids>Exercises>Q 12.8

How will you convert ethanal into but-

2

-enoic acid compound ?

MEDIUM

12th CBSE

IMPORTANT

Chemistry Part 2 Textbook for Class 12>Chapter 3 - Aldehydes, Ketones and Carboxylic Acids>Exercises>Q 12.9

Write structural formulas and names of four possible aldol condensation products from propanal and butanal. In each case, indicate which aldehyde acts as nucleophile and which as electrophile.

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IMPORTANT

Chemistry Part 2 Textbook for Class 12>Chapter 3 - Aldehydes, Ketones and Carboxylic Acids>Exercises>Q 12.1

An organic compound with the molecular formula

C_{9} H_{10} O

forms

2, 4

-DNP derivative, reduces Tollens' reagent and undergoes Cannizzaro reaction. On vigorous oxidation, it gives

1, 2

-benzenedicarboxylic acid. Identify the compound.

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IMPORTANT

Chemistry Part 2 Textbook for Class 12>Chapter 3 - Aldehydes, Ketones and Carboxylic Acids>Exercises>Q 12.11

An organic compound

(A)

(molecular formula

C_{8} H_{16} O_{2}

) was hydrolysed with dilute sulphuric acid to give a carboxylic acid

(B)

and an alcohol

(C)

. Oxidation of

(C)

with chromic acid produced

(B)

(C)

on dehydration gives but-

1

-ene. Write equations for the reactions involved.

HARD

12th CBSE

IMPORTANT

Chemistry Part 2 Textbook for Class 12>Chapter 3 - Aldehydes, Ketones and Carboxylic Acids>Exercises>Q 12.12

Arrange the following compounds in increasing order of their property as indicated:
Acetaldehyde, Acetone, Di-tert-butyl ketone, Methyl tert-butyl ketone (reactivity towards

H C N

)

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12th CBSE

IMPORTANT

Chemistry Part 2 Textbook for Class 12>Chapter 3 - Aldehydes, Ketones and Carboxylic Acids>Exercises>Q 12.12

Arrange the following compounds in increasing order of their property as indicated:

$C H_{3} C H_{2} C H (B r) C O O H, C H_{3} C H (B r) C H_{2} C O O H, {(C H_{3})}_{2} C H C O O H, C H_{3} C H_{2} C H_{2} C O O H$ (acid strength).

HARD

12th CBSE

IMPORTANT

Chemistry Part 2 Textbook for Class 12>Chapter 3 - Aldehydes, Ketones and Carboxylic Acids>Exercises>Q 12.12

Arrange the following compounds in increasing order of their property as indicated:

Benzoic acid, $4$ -Nitrobenzoic acid, $3, 4$ -Dinitrobenzoic acid, $4$ -Methoxybenzoic acid (acid strength)

HARD

12th CBSE

IMPORTANT

Chemistry Part 2 Textbook for Class 12>Chapter 3 - Aldehydes, Ketones and Carboxylic Acids>Exercises>Q 12.13

Give simple chemical tests to distinguish between the following pairs of compounds.
Propanal and Propanone

How will you convert ethanal into but-2-enal compound ?

Important Questions on Aldehydes, Ketones and Carboxylic Acids

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How will you convert ethanal into but- $2$ -enal compound ?