Chemistry - AMINES Question with Solution | TestHub

P is sodium phthalimide; alkylation/hydrolysis gives ethylamine S and phthalic acid T. Hofmann degradation gives anthranilic acid Q. Q gives aromatic azo coupling, S does not (A). Phthalic acid has strongest first acidity among the three benzenedicarboxylic acids (B). Both primary amines give mustard-oil test, so C false. P is already an ionic soluble salt and Q/T form bicarbonate-soluble carboxylates, so D true.