When 2-butyne is heated with hydrogen gas in the presence of Pd- BaSO₄dissolved in Quinoline, The product is

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Trans -2-butene

1-butene

2-Hydroxybutane

cis-2-butene

answer is A.

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Detailed Solution

The reaction of alkynes with poisonised catalytic hydrogenation always gives rise to the cis product due to the fact that it is undergoing the addition of Hydrogen via a cyclic transition state.

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