By which reaction is anisole obtained from phenol?

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

Amongst the following,the total number of compounds soluble in aqueous $NaOH$ is:

Suppose the following reaction:
$CH_3-CH_2-OH$ $\xrightarrow{Cl_2/NaOH} A$ $\xrightarrow{\text{Phenol}/OH^-} \text{Major Product}$
The structure of the Major Product will be:

Identify the missing reactant in the following reaction: $(?) + H^+ \xrightarrow{H_2O} \text{Salicylic acid} + CH_3COCH_3$

Reaction of phenol with which of the following reagents forms picric acid?