Identify the product '$B$' in the following reaction: $CH_3 - I \xrightarrow{KCN} A \xrightarrow{Na/C_2H_5OH} B$

Starting from propanoic acid,the following reactions were carried out: $CH_3-CH_2-COOH$ $\xrightarrow{SOCl_2} [X]$ $\xrightarrow[\Delta]{NH_3} [Y]$ $\xrightarrow[KOH]{Br_2} [Z]$. Product $[Z]$ will be?

Which of the following reactions can be used to prepare an amine from an amide?

Which of the following amines cannot be prepared by the Gabriel phthalimide synthesis method?

$Cl-CH_2-COONa$ on boiling with aqueous sodium nitrite gives:

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