Which of these metal carbides on reaction with $H_{2} O$ form $C H_{4}$ ?

C a C_{2}

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M g_{3} C_{2}

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B e_{2} C

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S i C

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Solution

The correct option is A $B e_{2} C$
$B e_{2} C (s) + 4 H_{2} O (l) \to 2 B e (O H)_{2} (s) + C H_{4} (g)$
$C a C_{2} + 2 H_{2} O \to C_{2} H_{2} + C a (O H)_{2}$
$M g_{3} C_{2} + 4 H_{2} O \to 2 M g (O H)_{2} + C_{3} H_{4}$

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Similar questions

Which is not obtained when metal carbides react with H₂O?

H_{2} O

C H_{4}

S i C, C a C_{2}, B e_{2} C, A l_{2} C_{6}, A l_{4} C_{3}, B_{4} C

B e_{2} C, C a C_{2}, M g_{2} C_{3}, A l_{4} C_{3}, C H_{4},

B e_{2} C + H_{2} O \to B e (O H)_{2} + X

C a C_{2} + H_{2} O \to C a (O H)_{2} + Y

X

Y

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