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

Question

How many of the following groups if substituted at o and / or p-positions of chlorobenzene, increase its reactivity towards nucleophilic substitution? - CN ,- CH 3- NH ( CH 3),- COOH ,- NO 2,- OCH 3 (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

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.

Q. How many of the following groups if substituted at $o$ and / or $p$ -positions of chlorobenzene, increase its reactivity towards nucleophilic substitution? $- CN, - C H_{3} - N H (C H_{3}), - COO H, - N O_{2}, - OC H_{3}$

The presence of electron-withdrawing groups $($ like $- CN, - COO H, - N O_{2}$ ) at $o$ - and $p$ -positions with respect to halogen atom activates the aryl halide towards nucleophilic substitution reactions.

Q. How many of the following groups if substituted at o and / or p-positions of chlorobenzene, increase its reactivity towards nucleophilic substitution? −CN,−CH3​−NH(CH3​),−COOH,−NO2​,−OCH3​

The presence of electron-withdrawing groups ( like −CN,−COOH,−NO2​ ) at o- and p-positions with respect to halogen atom activates the aryl halide towards nucleophilic substitution reactions.

Q. How many of the following groups if substituted at $o$ and / or $p$ -positions of chlorobenzene, increase its reactivity towards nucleophilic substitution? $- CN, - C H_{3} - N H (C H_{3}), - COO H, - N O_{2}, - OC H_{3}$

The presence of electron-withdrawing groups $($ like $- CN, - COO H, - N O_{2}$ ) at $o$ - and $p$ -positions with respect to halogen atom activates the aryl halide towards nucleophilic substitution reactions.