$C_2H_5Cl$ $\xrightarrow{KCN} X$ $\xrightarrow{H_2 / \text{Catalyst}} Y$ $\xrightarrow{CHCl_3 / KOH} Z$
What is '$Z$' in the above sequence of reactions?

Identify $Z$ in the above sequence of reactions.

In the sequence of the following reactions,$X$ and $Y$ are respectively: $CH_3OH$ $\xrightarrow{HI} CH_3I$ $\xrightarrow{KCN} CH_3CN$ $\xrightarrow{\text{reduction}} X$ $\xrightarrow{HNO_2} Y$

In the following reaction,the product $(A)$ is

The following two reactions give the same foul-smelling product $Z$. $C_2H_5Cl \xrightarrow{X} Z$ and $C_2H_5CONH_2 \xrightarrow{Br_2, NaOH} Y \xrightarrow{CHCl_3/ethanolic KOH, \Delta} Z$. $X$ and $Z$,respectively,are:

$9.3 \ g$ of pure aniline is treated with bromine water at room temperature to give a white precipitate of the product '$P$'. The mass of product '$P$' obtained is $26.4 \ g$. The percentage yield is $......... \ \%$.