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Complex II

The alkyne wh...

Question

The alkyne which will react with $K M n O_{4}$ to give pyruvic acid is:

ethyne

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propyne

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butyne

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2-pentyne

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Solution

The correct option is B propyne
Propyne reacts with or in other words oxidised in presence of $K M n O_{4}$ to produce $1, 1, 2, 2 -$ tetrahydroxy propane which in turn loses two molecules of water to form pyruvic acid.
(Refer to Image)

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