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

Which one of the following compounds undergoes Hoffmann degradation reaction?

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:

Which of the following reactions is used for the preparation of $1^o$ amines?

$CH_3-CH_2-I$ $\xrightarrow{NaCN} A$ $\xrightarrow[Partial \ hydrolysis]{\Theta OH} B$ $\xrightarrow[Br_2]{NaOH} C$. Product $C$ is

Identify the major product $C$ formed in the following reaction sequence:
$CH_3-CH_2-CH_2-I$ $\xrightarrow{NaCN} A$ $\xrightarrow[\text{Partial hydrolysis}]{OH^-} B$ $\xrightarrow{NaOH/Br_2} C \text{ (major)}$