How many of the following groups if substituted at $\text{o-}$ and / or $\text{p-}$ positions of chlorobenzene, increase its reactivity towards nucleophilic substitution?
$- \text{CN}, - {\text{CH}}_{3} - \text{NH} ( {\text{CH}}_{3} ) , - \text{COOH}, - {\text{NO}}_{2}, - {\text{OCH}}_{3}$

Question

How many of the following groups if substituted at

\text{o-}

and / or

\text{p-}

positions of chlorobenzene, increase its reactivity towards nucleophilic substitution?

- \text{CN}, - {\text{CH}}_{3} - \text{NH} ( {\text{CH}}_{3} ) , - \text{COOH}, - {\text{NO}}_{2}, - {\text{OCH}}_{3}

Quantrex Academy · Accepted Answer

Correct answer: 3

The presence of electron-withdrawing groups (like - CN, - COOH, - NO _ 2 ) at o- and p- positions with respect to halogen atom activates the aryl halide towards nucleophilic substitution reactions.

How many of the following groups if substituted at o- and / or p-...

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