The number of activating and deactivating gro | vedclass

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(A) Activating groups are those that donate electron density to the benzene ring,typically via resonance (e.g.,lone pairs). Deactivating groups are th

Vedclass · Accepted Answer

$2, 3$

Vedclass · Answer

(A) Activating groups are those that donate electron density to the benzene ring,typically via resonance (e.g.,lone pairs). Deactivating groups are those that withdraw electron density from the benzene ring,typically via inductive or resonance effects.$1$. $-OCH_2CH_3$: Activating (due to lone pair on oxygen).$2$. $-COCH_3$: Deactivating (electron-withdrawing carbonyl group).$3$. $-NHCOCH_3$: Activating (due to lone pair on nitrogen).$4$. $-COOCH_3$: Deactivating (electron-withdrawing ester group).$5$. $-SO_3H$: Deactivating (electron-withdrawing sulfonic acid group).Thus,there are $2$ activating groups $(-OCH_2CH_3, -NHCOCH_3)$ and $3$ deactivating groups $(-COCH_3, -COOCH_3, -SO_3H)$.Therefore,the correct answer is $2, 3$.

The number of activating and deactivating groups among the following are respectively: $-OCH_2CH_3, -COCH_3, -NHCOCH_3, -COOCH_3, -SO_3H$

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