JEE Main Chemistry question

Ph–C≡C–CH₃ is treated with Hg²⁺/H⁺ to give A. A is

(A)PhCOCH₂CH₃Correct
(B)PhCH₂COCH₃
(C)PhCH₂CH₂CHO
(D)PhCOCH₃

Answer: (A)

Solution

Hg²⁺/H⁺ catalyzes Markovnikov hydration of the internal alkyne. Water adds with OH on the carbon that gives the more stable carbocation/enol (benzylic

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Question ID VK-149055