question_answer 76)

  A compound Z with molecular formula  reacts with  to give a solid, insoluble alkali. Identify Z.

Answer:

                  Since the amine Z on treatment with  gives a product which is insoluble in alkali, therefore, the product does not have a replaceable hydrogen on the N-atom. In other words, the amine Z is a 2° amine. The only 2° amine having the M.F.  is ethylmethylamine, i.e., the amine (Z) is ethylmethylamine,