The reaction of amides with $Br_2$ and $OH^-$ (Hofmann bromamide degradation) involves an intramolecular migration of the alkyl group from the carbonyl carbon to the nitrogen atom with retention of configuration at the migrating center. Predict the products for the following reaction:
(Image shows two substituted cyclohexanecarboxamides reacting with $Br_2/OH^-$)

The correct statements about the products $B$ and $C$ in the given reactions are
$CH_3CH_2OH$ $\xrightarrow[\text{Anhy } ZnCl_2]{HCl} A$ $\xrightarrow[\text{AgCN}]{\text{ethanolic}} \underset{\text{Minor}}{B} + \underset{\text{Major}}{C}$
$I$. $B$ and $C$ are functional isomers
$II$. With $H_2 / \text{Catalyst}$,$B$ gives $1^{\circ}$ amine and $C$ gives $2^{\circ}$ amine
$III$. $B$ on acid hydrolysis gives formic acid and $C$ gives $C_3H_6O_2$
$IV$. $C$ forms isocyanate with $HgO$

Unpleasant smelling carbylamines are formed by heating alkali and chloroform with

What are $X$ and $Y$ in the following reactions?

Identify $A$,$B$ and $C$ in the sequence: $CH_3CH_2Br$ $\xrightarrow[Alc.]{KCN} A$ $\xrightarrow{LiAlH_4} B$ $\xrightarrow[0^{\circ}C]{HNO_2} C$

The end product of the reactions is
$C_2H_5NH_2$ $\xrightarrow{HNO_2} A$ $\xrightarrow{PCl_5} B$ $\xrightarrow{NH_3} C$