trans-2-Butene is allowed to react with $D_{2}$ in the presence of nickel as catalyst. The product formed is:

(\pm)

2,3-dideuteriobutane

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meso-2,3-dideuteriobutane

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1,4-dideuteriotrans-2-buten

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2,3-dideuteriobutane

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Solution

The correct option is A $(\pm)$ 2,3-dideuteriobutane
Trans-2-Butene is allowed to react with $D_{2}$ in the presence of nickel as catalyst. The product formed is (±) 2,3 dideuteriobutane. The product is obtained due to syn addition of a molecule of deuterium across $C = C$ double bond.

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