What is the action of $\mathrm{HCN}$ on Ethanal ?

Important Questions on Carbonyl Compounds and Carboxylic Acids

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 10

A carbonyl compound $\mathrm{A}$ having molecular formula ${\mathrm{C}}_5{\mathrm{H}}_{10}\mathrm{O}$ forms crystalline precipitate with sodium bisulphite and gives positive iodoform test. $\mathrm{A}$ does not reduce Fehling solution. Identify $\mathrm{A}$.

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 11

Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 12

How are the following conversion effected Propanal into Butanone?

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 12

How is the following conversion effected Hex-$3$-yne into Hexan-$3$-one?

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 12

How is the following conversion effected, phenylmethanal into benzoic acid ?

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 12

How is the following conversion effected:
Phenylmethanal into benzoin ?

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 13

Complete the following reaction:

     

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 14

Identify $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$