Identify the final product $Z$ in the following reaction sequence:

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 $HgO$

$Ph-C \equiv CH$ $\xrightarrow[Excess]{HCl} X$ $\xrightarrow{KOH (aq.)} Y$ $\xrightarrow{CH_3-CH_2-NH_2} Z,$
$Z$ is known as

Choose the correct colour of the product for the following reaction.

When propionamide is treated with $Br_2$ and $NaOH$,which of the following products is obtained?

Which of the following products is $NOT$ obtained by the Hofmann reaction?