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MCQ
What is the role of AlCl3 in Friedel-Crafts acylation?
Chemistry
A Reducing agent
B Lewis acid catalyst generating the acylium ion
C Oxidizing agent
D Base catalyst
Explanation

AlCl3 is a Lewis acid that coordinates with the acyl chloride, generating the electrophilic acylium ion (R-C≡O+) that attacks the aromatic ring.

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