Question

Which of the following will liberate ammonia on heating with soda lime ?

1) C6H5NH2 2) C6H5NO2

3) C6H5CONH2 4) C H N N C H 6 5 6 5​

Answer 1

Answer:

ANSWER

Ph−

C

∣∣

O

−NH−CH

3

This compound forms 1

o

amine when treated with aqueous NaOH.

Answer 2

Solution:

Option 3 is correct.

Explanation:

A small amount of an organic compound is heated strongly with soda lime ($CaO+NaOH$). The liberation of ammonia indicates the presence of nitrogen in the organic compound.

$C_{6}H_{5}CONH_{2} +NaOH --- > C_{6}H_{5} COONa + NH_{3}$

Hence, option 3 is correct.