The major product of the following reaction is:

Which of the following will be most easily attacked by an electrophile?

What will be the major product of the given reaction?

Which reagent from the following is used in the Reimer-Tiemann reaction?

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

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