QJEEM23Ch1a9b: JEE Main 2023 Chemistry - Class 12 JEEM23Ch1a9b Solution: The correct order of reactivity of following haloarenes towards …

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}