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Solution


Q.

The amine that reacts with Hinsberg’s reagent to give an alkali insoluble product is            [2019]
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Ans.

(1)

Secondary amines on reaction with Hinsberg’s reagent give N, N-dialkylbenzene sulphonamide which does not contain any hydrogen atom attached to N-atom, it is not acidic and hence, insoluble in alkali. Tertiary amines do not react with Hinsberg’s reagent. Primary amines give products which are soluble in alkali.