JEE Main 2023 — Haloalkanes And Haloarenes Question with Solution

Aryl halides are less reactive towards nucleophilic aromatic substitution with aqueous $\mathrm{NaOH}$.

Introduction of electron releasing group like ${\mathrm{OCH}}_3$ group further decreases its reactivity towards nucleophilic substitution. But the introduction of electron-withdrawing groups like ${\mathrm{NO}}_2$ group particularly at the ortho and para position increases its reactivity towards nucleophilic substitution. Higher the number of electron withdrawing groups, higher the reactivity.

$\therefore$ The correct reactivity order is $$\mathrm{D}>\mathrm{B}>\mathrm{A}>\mathrm{C}$$