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Isomerism

Identify the ...

Question

Identify the organic compound which can react with only one mole of sodium metal in the presence of strong base.

A

Propyne

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B

Ethyne

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C

2-butyne

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D

Ethene

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Solution

The correct option is B Propyne
Propyne is $\to$ $C H_{3} - C \equiv C H$ .
Therefore only one acidic hydrogen is available for reaction with Na. So it reacts with one mole of Na.

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