1. Tardigrade
  2. Question
  3. Chemistry
  4. Assertion: Alkyl benzene is not prepared by Friedel-Craft’s alkylation of benzene. Reason: Alkyl halides are less reactive than acyl halides.

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Q. Assertion : Alkyl benzene is not prepared by Friedel-Craft’s alkylation of benzene.
Reason : Alkyl halides are less reactive than acyl halides.

AIIMSAIIMS 2012

Solution:

Alkyl benzene is not prepared by Friedel.Craft's alkylation because the monoalkyl product undergo alkylation to produce polyalkylated benzene. The reason that acyl halide are more reactive than alkyl halide is also true but reason is not the correct explanation for assertion.