The amine $A$,when treated with nitrous acid,gives a yellow oily substance. The amine $A$ is

The major product formed in the following reaction is

Compound $A$ is converted to $B$ on reaction with $CHCl_3$ and $KOH$. The compound $B$ is toxic and can be decomposed by $C$. $A, B$ and $C$ respectively are:

How many isomers of $C_4H_{11}N$ are tertiary amines?

In the chemical reactions,the compounds $A$ and $B$ respectively are

The major product formed in the following reaction sequence is: