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Total number of alkali insoluble solid sulphonamides obtained by reaction of given amines with Hinsberg's reagent is.... Aniline, N-Methylaniline, Methanamine, N, N-Dimethylethanamine, N-Methyl methanamine, Phenylmethanamine, N-propylaniline, N-phenylaniline, N, N-Dimethylaniline, Allyl amine, Isopropyl amine

1. 4
2. 2
3. 8
4. 5

Correct answer: 4

Solution

The correct option is 4 because only certain amines from the list can form alkali insoluble sulphonamides when reacted with Hinsberg's reagent, specifically those that are primary amines. In this case, four of the listed amines meet this criterion.

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