Identify the product when chlorobenzene is heated with nitrating mixture.

Identify the product formed when 2-Bromobutane is heated with aqueous solution of sodium hydroxide.

Which of the following is likely to undergo racemization during alkaline hydrolysis by $\mathrm{S}_{\mathrm{N}} 1$ mechanism?

$$ \begin{aligned} &\text { Identify ' } \mathrm{A} \text { ' in the following reaction. }\\ &\underset{\text { (excess) }}{\mathrm{A}}+\underset{\text { (excess) }}{\operatorname{Acetyl} \text { chloride }} \xrightarrow[\mathrm{AlCl}_3]{\text { Anhydrous }} \end{aligned} $$

2-Chloroacetophenone + 4-Chloroacetophenone