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`CH_3C-=C CH_3underset(CH_3CH_2OH)overset(Na)toP` Identify the product.

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`CH_3C-=C CH_3underset(CH_3CH_2OH)overset(Na)toP`
Identify the product.
A. cis-but-2-ene
B. trans-but-2-ene
C. an equimolar mixture of (1) and (2)
D. Unequal amounts of (1) and (2)
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1 Answer

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Correct Answer - B
Active metal (Na) reduction of an alkyne in a protic solvent `(C_2H_2OH)` leads to anti-addition on account of the formation of vinyl radical carbanion.
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