The major product $Z$ formed in the following sequence of reactions is:

$(i)$ Write structures of different isomeric amines corresponding to the molecular formula,$C_{4}H_{11}N$. $(ii)$ Write $IUPAC$ names of all the isomers. $(iii)$ What type of isomerism is exhibited by different pairs of amines?

The final product $A$, formed in the following multistep reaction sequence is:

Match the Compounds (List-$I$) with the appropriate Catalyst/Reagents (List-$II$) for their reduction or conversion into corresponding amines.

List-$I$ (Compounds)	List-$II$ (Catalyst/Reagents)
$A$. $R-CONH_2$	$I$. $NaOH$ (aqueous)
$B$. $C_6H_5NO_2$	$II$. $H_2 / Ni$
$C$. $R-C \equiv N$	$III$. $LiAlH_4, H_2O$
$D$. $N$-alkylphthalimide	$IV$. $Sn,HCl$

Choose the correct answer from the options given below:

Match each of the compounds in Column $I$ with its characteristic reaction$(s)$ in Column $II$.

Column $I$	Column $II$
$A$. $CH_3CH_2CH_2CN$	$p$. Reduction with $Pd-C/H_2$
$B$. $CH_3CH_2OCOCH_3$	$q$. Reduction with $SnCl_2/HCl$
$C$. $CH_3-CH=CH-CH_2OH$	$r$. Development of foul smell on treatment with chloroform and alcoholic $KOH$
$D$. $CH_3CH_2CH_2CH_2NH_2$	$s$. Reduction with diisobutylaluminium hydride $(DIBAL-H)$
	$t$. Alkaline hydrolysis

Identify $C$ in the following reaction sequence:
$Cyclohexanone$ $\xrightarrow[\text{Alkaline medium}]{HCN} A$ $\xrightarrow{LiAlH_4} B$ $\xrightarrow{NaNO_2/HCl} C$