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As per your syllabus, halogenation, the role of anhydrous AlCl₃ (or FeCl₃) in benzene chlorination is which?
ASolvent
BFree-radical initiator
CReducing agent
DLewis acid generating Cl⁺
Answer & Solution
Correct answer: D. Lewis acid generating Cl⁺
Your syllabus: AlCl₃ + Cl₂ → AlCl₄⁻ + Cl⁺.
The Lewis acid polarises Cl-Cl to free Cl⁺ as the electrophile.
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