A compound Z with molecular formula C3H9N reacts with C6H5SO2Cl to give solid, insoluble in alkali. Identify Z.

Z(C3H9N) is an aliphatic amine. On reaction with C6H5SO2Cl (Hinsberg's reagent), it gives a product insoluble in alkali. It means that the product does not have a replaceable H-atom tam. So. compound Z is a secondary amine (ethyl methylamine).