The major product of the reaction is:

Which of the following amines undergoes acylation reaction?

Highest value of $pK_b$ will be of :

Consider the following sequence of reactions: $C_2H_5-Br$ $\xrightarrow{AgCN} A$ $\xrightarrow{H_2/Ni} B$. Product $B$ is:

$A$ compound with molecular mass $180$ is acylated with $CH_3COCl$ to get a compound with molecular mass $390$. The number of amino groups present per molecule of the former compound is:

The correct order of basicity of the following compounds is