The alkaline earth metal carbide, which gives methane on hydrolysis is:

C a C_{2}

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M g_{2} C_{3}

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S r C_{3}

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B e_{2} C

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Solution

The correct option is C $B e_{2} C$
$B e_{2} C + H_{2} O \to B e (O H)_{2} + C H_{4}$

On reaction with water, beryllium carbide is hydrolyzed to give methane. The carbides of other alkaline earth metals react with water to give acetylene.

Hence, the correct option is $D$

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Which is not obtained when metal carbides react with H₂O?

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Which of the following on hydrolysis can give methane

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