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MHT CET Chemistry question

ChemistryOrganic Oxidation & Reduction ReactionsMHT CET

The reduction of 4-octyne with in the presence of Pd/ quinoline gives

Answer: (B)

Solution

Pd/CaCO poisoned with quinoline (Lindlar catalyst) stops at the alkene stage and adds both hydrogens on the same face, giving

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Question ID VK-044232