Suggest a convenient scheme for separating aniline, N - methyl aniline, toluene and phenol present together in a mixture. Distallation is not to be used.

Explanation

(1) The mixture is treated, with 'HCl'. Thís will separate aniline and 'N' - methyl aniline as their respectige hydrochiorides from toluene and phenol.
(2) - Tolvene and phenol can be'separated by 'dot NaOH', which reacts with phenol to form sodium phenoxide.
(3) Mixture of hydrochlorides of aniline and N-methyl aniline is treated '1^ t ' with 'C_6 H_5 SO_2 Cl' and then with KOH solution when benzene.sulphonamide of aniline dissolves leaving behind bẻnzene sulphònamide of N-methylanilińe.