Chloromethane on treatment with excess of ammonia yields mainly
(i) N,N- Dimethylmethanamine
(ii) N-methylmethanamine
(iii) Methanamine
(iv) Mixture containing all of these mixtures in equal proportion
(iii) Chloromethane on treatment with an excess of ammonia yields mainly methenamine.
However, if the two reactants are present in the same amount, the mixture of the primary, secondary, and tertiary amine is obtained.