Which of the following amines, when heated with ethanolic $KOH$ and chloroform, forms an aryl isocyanide?

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

With respect to the following reaction,consider the given statements:
$C_6H_5NH_2 \xrightarrow{HNO_3, H_2SO_4, 288 \ K} \text{products}$
$(A)$ $o$-Nitroaniline and $p$-nitroaniline are the predominant products.
$(B)$ $p$-Nitroaniline and $m$-nitroaniline are the predominant products.
$(C)$ $HNO_3$ acts as an acid.
$(D)$ $H_2SO_4$ acts as an acid.

Which of the following is the least alkaline?

Consider the following:
Statement-$I$: In the nitration of aniline,a significant amount of $m$-nitroaniline is formed.
Statement-$II$: In the presence of a strongly acidic medium,aniline is protonated to form the anilinium ion,which is meta-directing.

The structure of the compound formed when nitrobenzene is reduced by lithium aluminium hydride $(LiAlH_4)$ is