Assertion :Alkyl benzene is not prepared by Friedel-Craft's alkylation of benzene. Reason: Alkyl halides are less reactive than acyl halides.
Read the above assertion and reason and choose the correct option regarding it.
A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution
The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion Alkyl benzene is not prepared by Friedel-Craft's alkylation of benzene. Di, tri alkylated benzenes are also formed in addition to monoalkylated benzene and the separation of these products is difficult. Alkyl benzene is prepared by Friedel-Craft's alkylation of benzene followed by reduction of acyl benzene to alkyl benzene. This gives mno alkylated product. Alkyl halides are less reactive than acyl halides. The carbonyl C atom is more electrophilic than C atom of alkyl haliodes. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.