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Preparation and Properties of Beryllium Hydride

Which of the ...

Question

Which of the following metal carbides may be called a methanide?

A

C a C_{2}

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B

M g_{2} C_{3}

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C

A l_{4} C_{3}

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D

B a C_{2}

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Solution

The correct option is C $A l_{4} C_{3}$
$A l_{4} C_{3}$ reacts with water to produce methane $(C H_{4})$ .
$A l_{4} C_{3} + 12 H_{2} O \to 4 A l (O H)_{3} + 3 C H_{4}$
Therefore, it may be called a methanide.

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