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Question

2butyne+Na/NH3(l) then OsO4/NaHSO3
The major product in the above reaction is

A
a pure enantiomers of butane2,3diol
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B
meso butane2,3diol
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C
racemic mixture of butane2,3diol
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D
pair of enantiomers of butane2,3diol but in unequal amount
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Solution

The correct option is C racemic mixture of butane2,3diol
The major product of the given reaction is represented by option (C). The reaction is as shown above.

424031_226902_ans_9de8a02439ff4592b8ec0e215bf25eb8.png

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