A colorless substance ‘A’ (C 6 H 7 N) is sparingly soluble in water and gives a water soluble compound ‘B’ on treating with mineral acid. On reacting with CHCl 3 and alcoholic potash ‘A’ produces an obnoxious smell due to the formation of compound ‘C’. Reaction of ‘A’ with benzenesulfonyl chloride gives compound ‘D’ which is soluble in alkali. With NaNO 2 and HCl, ‘A’ forms compound ‘E’ which reacts with phenol in al