Assertion: Alkylbenzene is not prepared by Fr | vedclass

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(B) The Assertion is correct because Friedel-Crafts alkylation of benzene leads to polyalkylation due to the activating nature of the alkyl group intr

Vedclass · Accepted Answer

If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

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(B) The Assertion is correct because Friedel-Crafts alkylation of benzene leads to polyalkylation due to the activating nature of the alkyl group introduced,making the product more reactive than the starting material.The Reason is also correct because acyl halides $(RCOX)$ are indeed more reactive than alkyl halides $(RX)$ in terms of electrophilic substitution reactions,as the carbonyl carbon is more electron-deficient than the alkyl carbon.However,the Reason does not explain why alkylation is not used for preparing alkylbenzene; the limitation of alkylation is polyalkylation,not the reactivity of the halide.Therefore,both statements are true,but the Reason is not the correct explanation of the Assertion.

Assertion: Alkylbenzene is not prepared by Friedel-Crafts alkylation of benzene.
Reason: Alkyl halides are less reactive than acyl halides.

Similar Questions

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Assertion: Alkylbenzene is not prepared by Friedel-Crafts alkylation of benzene.Reason: Alkyl halides are less reactive than acyl halides.