Question

A primary amine 'A' C₂H₇N reacts with alkyl halide (C₂H₅I) to give secondary amine 'B'. 'B' reacts with C₆H₅SO₂Cl to give a solid 'C' which is insoluble in alkali. Identify 'A', 'B', 'C' and write all the chemical reactions involved.

Account for the following :

How will you convert the following:

Draw the zwitter ion structure for sulphanilic acid.