An amine on reaction with benzenesulphonyl chloride produces a compound insoluble in alkaline solution.

Question:

An amine on reaction with benzenesulphonyl chloride produces a compound insoluble in alkaline solution. This amine can be prepared by ammonolysis of ethyl chloride. The correct structure of amine is:

  1. $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \stackrel{\mathrm{H}}{\mathrm{N}}-\mathrm{CH}_{2} \mathrm{CH}_{3}$

  2. $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{NHCH}_{3}$

  3. $\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{NH}_{2}$


Correct Option: 1

Solution:

According to the question the amine should be $2^{\circ}$-amine, in which one of the alkyl group should be ethyl, because it can be formed by ammonolysis of ethyl chloride

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