Which one of the following compounds gives aspirin on reacting with acetic anhydride in the presence of conc. $H_2SO_4$?

Explain how the $-OH$ group attached to a carbon of a benzene ring activates it towards electrophilic substitution.

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

The heating of phenyl methyl ether with $HI$ produces an aromatic compound $A$ which on treatment with conc. $HNO_3$ gives $B$. $A$ and $B$ respectively are

Identify the major products $P$,$Q$,and $R$ in the following sequence of reaction:
$\text{Benzene} + CH_3CH_2CH_2Cl$ $\xrightarrow{\text{Anhydrous } AlCl_3} P$ $\xrightarrow[(ii) H_3O^+/\Delta]{(i) O_2} Q + R$

Identify the product in the following reaction:
Phenol + $CHCl_3 + NaOH \rightarrow \text{Product}$