Propyne is produced during the hydrolysis of:

C a C_{2}

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A l_{4} C_{3}

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M g_{2} C_{3}

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S i C

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Solution

The correct option is C $M g_{2} C_{3}$
Propyne can be prepared by the hydrolysis of a magnesium carbide.
$M g_{2} C_{3} + 4 H_{2} O \to C H_{3} C \equiv C H + 2 M g (O {H)}_{2}$ .
Conclusion: hence the answer option (C) is correct.

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