RE-NEET 2026 Chemistry Friedel-Crafts Reactions MCQ Question
Consider the following reaction, and choose the correct option.
Compound P can be prepared by treating benzene with anhydrous AlCl₃ and CH₃COCl.
On treatment with bromine water, compound P gives a white precipitate.
Compound P is obtained by the hydrogenation of benzoyl chloride with Pd on BaSO₄.
On treating compound P with saturated NaHCO₃ solution, brisk effervescence is observed.
Correct Answer
Detailed Explanation
The correct answer is C: Compound P is obtained by the hydrogenation of benzoyl chloride with Pd on BaSO₄. This reaction involves the reduction of benzoyl chloride, which contains a carbonyl group, to form a corresponding alkane. The use of palladium on barium sulfate (Pd/BaSO₄) facilitates this selective hydrogenation.
Option A fails because treating benzene with anhydrous AlCl₃ and CH₃COCl leads to an acylation reaction, not the formation of compound P. Option B is incorrect as bromine water would not react with compound P to form a precipitate. Option D is also wrong; treating compound P with NaHCO₃ does not produce effervescence, as it lacks an acidic hydrogen.
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