Amides may be converted into amines by a reaction named after:

In a set of reactions,$m$-bromobenzoic acid gave a product $D$. Identify the product $D$.
$m$-bromobenzoic acid $\xrightarrow{SOCl_2} B$ $\xrightarrow{NH_3} C$ $\xrightarrow{Br_2, NaOH} D$

In the reaction sequence $CH_3CONH_2$ $\xrightarrow{?} CH_3CN$ $\xrightarrow{\text{reduction}} CH_3CH_2NH_2$,which dehydrating agent is used in the first step?

Identify the product formed in the following reaction sequence:

Identify $A$ and $B$ in the following reaction.
$CH_3Br$ $\xrightarrow{AgNO_2} A$ $\xrightarrow{Sn / HCl} B$

Which of the following compounds is $NOT$ obtained at any stage of Gabriel phthalimide synthesis?