Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 21

HARD

12th Tamil Nadu Board

IMPORTANT

Earn 100

Phenylmethanal is reacted with concentrated $NaOH$ to give two products $X$ and $Y$ . $X$ reacts with metallic sodium to liberate hydrogen. $X$ and $Y$ are

50% studentsanswered this correctly

Important Questions on Carbonyl Compounds and Carboxylic Acids

MEDIUM

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 22

In which of the following reactions new carbon-carbon bond is not formed?

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 23

An alkene “

A

” on reaction with

O_{3}

and

Zn - H_{2} O

gives propanone and ethanal in equimolar ratio. Addition of

HCl

to alkene “

A

” gives “

B

” as the major product. The structure of product “

B

” is

MEDIUM

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 24

Carboxylic acids have higher boiling points than aldehydes, ketones and even alcohols of comparable molecular mass. It is due to their

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 1

How is Propanoic acid is prepared starting from an alcohol ?

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 1

How is Propanoic acid is prepared starting from an alkyl halide?

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 1

How is Propanoic acid is prepared starting from an alkene ?

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 2

A Compound

(A)

with molecular formula

C_{2} H_{3} N

on acid hydrolysis gives

(B)

which reacts with thionyl chloride to give compound

(C)

. Benzene reacts with compound

(C)

in presence of anhydrous

{AlCl}_{3}

to give compound

(D)

. Compound

(C)

on reduction gives

(E)

. Identify

(A), (B), (C), (D)

and

(E)

. Write the equations.

HARD

12th Tamil Nadu Board

IMPORTANT

Chemistry Standard 12 Vol II>Chapter 5 - Carbonyl Compounds and Carboxylic Acids>EVALUATION>Q 3

Identify $X$ and $Y$ .

Question Image