All In One ISC Chemistry Class 12>Chapter 12 - Aldehydes, Ketones and Carboxylic Acids>Chapter Practice>Q 23

HARD

12th ICSE

IMPORTANT

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Di-tert-butyl ketone does not give a ${NaHSO}_{3}$ adduct but acetone does. Give reason.

Important Questions on Aldehydes, Ketones and Carboxylic Acids

MEDIUM

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 12 - Aldehydes, Ketones and Carboxylic Acids>Chapter Practice>Q 24

Why is it necessary to control the pH during the reaction of aldehydes and ketones with ammonia derivatives?

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12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 12 - Aldehydes, Ketones and Carboxylic Acids>Chapter Practice>Q 25

Write the products of oxidation of pentan-2-one and are the major products same or different? Explain.

MEDIUM

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 12 - Aldehydes, Ketones and Carboxylic Acids>Chapter Practice>Q 25

Write the products of oxidation of pentan-2-one. Are the major products same or different? Explain.

EASY

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 12 - Aldehydes, Ketones and Carboxylic Acids>Chapter Practice>Q 26

Complete the following reaction and explain the formation of products.

${CH}_{3} COOH + {CH}_{3} OH \overset{H_{2} {SO}_{4}}{\to}$

EASY

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 12 - Aldehydes, Ketones and Carboxylic Acids>Chapter Practice>Q 27

Why benzoic acid does not undergo Friedel-crafts reaction?

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12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 12 - Aldehydes, Ketones and Carboxylic Acids>Chapter Practice>Q 28

An aldehyde,

A (C_{11} H_{8} O)

, which does not undergo self aldol condensation, gives benzaldehyde and

2

moles of

B

on ozonolysis. Compound

B

on oxidation gives oxalic acid. Identify the compounds

A

and

B

.

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12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 12 - Aldehydes, Ketones and Carboxylic Acids>Chapter Practice>Q 29

Identify the missing compounds in the following reaction sequence:

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HARD

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 12 - Aldehydes, Ketones and Carboxylic Acids>Chapter Practice>Q 31

Write balanced equations for the reaction of ammonia with formaldehyde, acetaldehyde and acetone.