Identify substrate '$$\mathrm{A}$$' in the following sequence of reactions.

A $$\mathrm{\mathrel{\mathop{\kern0pt\longrightarrow} \limits_\Delta ^{SOC{l_2}}}}$$ B $$\mathrm{\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{{C_2}{H_5}Cl}^{Na/ether}}}$$ 2-Methylbutane

Which of the following is tertiary benzylic alcohol?

Crotonyl alcohol is an example of

Identify the product obtained when ethoxybenzene reacts with hot and concentrated $$\mathrm{HI}$$.