Gabriel's phthalimide synthesis is used for the preparation of

What are $X$ and $Y$ in the following reactions?
$X \xrightarrow[(ii) H_2O]{(i) LiAlH_4} R CH_2 NH_2 \xleftarrow{H_2 / Ni} Y$

Compound $(D)$ is :
$CH_3CH_2COOH$ $\xrightarrow{SOCl_2} (B)$ $\xrightarrow[\Delta]{NH_3} (C)$ $\xrightarrow[Br_2]{KOH} (D)$

What is formed when $RCN$ is treated with sodium and alcohol?

An aromatic compound '$A$' on treatment with aqueous ammonia and heating forms compound '$B$',which on heating with $Br_2$ and $KOH$ forms a compound $C$ of molecular formula $C_6H_7N$. The structures of compound $A, B$ and $C$ are respectively:

When chlorobenzene is treated with $NH_3$ in the presence of $Cu_2O$ in xylene at $570 \ K$,the product obtained is: