The reaction is given as: $X \xrightarrow{Y} \text{Benzoquinone}$. Identify $X$ and $Y$ in the above reaction.

$4.7 \text{ g}$ of phenol is heated with $Zn$ to give product $X$. If this reaction goes to $60\%$ completion, then the number of moles of compound $X$ formed will be . . . . . . $\times 10^{-2}$. (Nearest Integer) (Given molar mass in $\text{g mol}^{-1}$: $H:1, C:12, O:16$)

In the given conversion,the compound $A$ is:

Which of the following compounds is obtained when phenol reacts with dilute nitric acid at low temperature?

The major product of the following reaction is:

Among $I, II, III$ (Phenol,o-nitrophenol,and p-nitrophenol respectively),the boiling point follows the order: