The compounds $X$ and $Y$ are respectively:

Match List-$I$ with List-$II$:

List-$I$	List-$II$
$A$. Benzenesulphonyl chloride	$I$. Test for primary amines
$B$. Hoffmann bromamide reaction	$II$. Anti Saytzeff
$C$. Carbylamine reaction	$III$. Hinsberg reagent
$D$. Hoffmann orientation	$IV$. Known reaction of isocyanates

Choose the correct answer from the options given below.

Amongst the compounds given,the one that would form a brilliant colored dye on treatment with $NaNO_2$ in dil. $HCl$ followed by addition to an alkaline solution of $\beta$-naphthol is

$A$ hydrocarbon $'A'$ $(C_4H_8)$ on reaction with $HCl$ gives a compound $'B'$ $(C_4H_9Cl)$,which on reaction with $1 \ mol$ of $NH_3$ gives compound $'C'$ $(C_4H_{11}N)$. On reacting with $NaNO_2$ and $HCl$ followed by treatment with water,compound $'C'$ yields an optically active alcohol,$'D'$. Ozonolysis of $'A'$ gives $2 \ mols$ of acetaldehyde. Identify compounds $'A'$ to $'D'$. Explain the reactions involved.

How many of the transformations given below would result in aromatic amines?

$C_3H_9N$ represents