Which of the following chemical test can distinguish between methylamine and dimethylamine?

Step-by-step solution

Methylamine and Dimethylamine : They can be distinguished by carbylamines test. When heated with alcoholic solution of KOH and chloroform, methylamine gives foul smell of methyl isocyanide. C H 3 N H 2 + C H C l 3 + 3 K O H → C H 3 N C + 3 K C l + 3 H 2 O m e t h y l a min e M e t h y l i s o c y a n d e ( f o u l s m e l l ) dimethylamine does not give carbylamines test ( C H 3 ) 2 N H → C H C l 3 , K O H N o r e a c t i o n D i m e t h y l a m i n e