Number of deactivating groups in the followin | vedclass

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(B) Deactivating groups are those that withdraw electron density from the benzene ring through inductive or resonance effects, making the ring less re

Vedclass · Accepted Answer

$3$

Vedclass · Answer

(B) Deactivating groups are those that withdraw electron density from the benzene ring through inductive or resonance effects, making the ring less reactive towards electrophilic substitution reactions.Among the given groups:$1$. $-Cl$: Deactivating (due to strong $-I$ effect).$2$. $-SO_3H$: Deactivating (due to strong $-I$ and $-M$ effects).$3$. $-OH$: Activating (due to $+M$ effect).$4$. $-NHC_2H_5$: Activating (due to $+M$ effect).$5$. $-COOCH_3$: Deactivating (due to $-I$ and $-M$ effects).$6$. $-CH_3$: Activating (due to $+I$ and hyperconjugation).Therefore, the deactivating groups are $-Cl, -SO_3H, 	ext{ and } -COOCH_3$.The total number of deactivating groups is $3$.

Number of deactivating groups in the following is $-Cl, -SO_3H, -OH, -NHC_2H_5, -COOCH_3, -CH_3$.

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