Which of the following statements is incorrec | vedclass

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(D) $1$. Activating groups (like $-OH, -NH_2, -CH_3$) increase electron density on the ring and are $o-, p-$ directing.$2$. Halogens are deactivating

Vedclass · Accepted Answer

$t-$butylbenzene undergoes nitration more easily than toluene.

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(D) $1$. Activating groups (like $-OH, -NH_2, -CH_3$) increase electron density on the ring and are $o-, p-$ directing.$2$. Halogens are deactivating due to the $-I$ effect but are $o-, p-$ directing due to the $+M$ effect.$3$. $m-$directing groups (like $-NO_2, -CHO, -COOH$) are strongly deactivating,which is more than the deactivating effect of halogens.$4$. Regarding $t-$butylbenzene vs toluene: Toluene has a methyl group $(-CH_3)$ which is a stronger activator than the $t-$butyl group $(-C(CH_3)_3)$ due to steric hindrance and the nature of the inductive effect in the transition state. Therefore,toluene undergoes nitration more easily than $t-$butylbenzene. Thus,statement $D$ is incorrect.

Which of the following statements is incorrect?

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