Question

balance chemical equation for test for amine​

Answer 1

Answer:

see below

Explanation:

Hinsberg's test is used for the identification of primary, secondary and tertiary amines.

Hinsberg's reagent is benzenesulphonyl chloride (C  

6

​  

H  

5

​  

SO  

2

​  

Cl).

It reacts differently with primary, secondary and tertiary amines.

(i) Hinsberg's reagent reacts with primary amines to form N− alkylbenzenesulphonyl amide which is acidic in nature and soluble in alkali.

Note: N− alkylbenzenesulphonyl amide contains strong electron withdrawing sulphonyl group. Due to this, the H− atom attached to nitrogen can be removed easily. Hence, it is acidic.

(ii) Hinsberg's reagent reacts with secondary amines to form a sulphonamide which is insoluble in alkali.

Note: As there is no hydrogen atom attached to the N atom in the sulphonamide, it is not acidic and insoluble in alkali.

(iii) Hinsberg's reagent does not reacts with tertiary amines.