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Benzene treated with carbon monoxide and HCl over anhydrous AlCl3 forms which product?
ABenzoic acid
BAcetophenone
CBenzyl alcohol
DBenzaldehyde
Answer & Solution
Correct answer: D. Benzaldehyde
The Gatterman-Koch reaction introduces a formyl group onto the ring using CO and HCl with a Lewis acid, giving benzaldehyde.
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