The reduction reaction of chlorobenzene produces benzene in presence of nickel-aluminium alloy.

The reaction of toluene with $\mathrm{C}{\mathrm{l}}_2$ in presence of $\mathrm{F}\mathrm{e}\mathrm{C}{\mathrm{l}}_3$ gives predominantly

Represent the union of two sets by Venn diagram for each of the following.

$X=\{x | x$ is a prime number between $80$ and $100\}$

$Y=\{y | y$ is an odd number between $90$ and $100\}$

In the chemical reactions,



The compounds 'A' and 'B' respectively are

The product Q would be ?

Complete the following reaction:

${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{Cl}+2\left(\mathrm{H}\right)\underset{\mathrm{NaOH}}{\overset{ \mathrm{Ni}-\mathrm{Al} }{\to }}?+\mathrm{HCl}$