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Action of Water on Calcium Carbide

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Question

Write a balanced chemical equation when calcium carbide reacts with water.

C a C_{2} + 4 H_{2} O \to C a (O H)_{2} + C_{2} H_{6}

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

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C a C_{2} + 3 H_{2} O \to C a (O H)_{2} + C_{2} H_{4}

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

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Solution

The correct option is B $C a C_{2} + 2 H_{2} O \to C a (O H)_{2} + C_{2} H_{2}$
When calcium carbide reacts with water it produces calcium hydroxide and acetylene gas. The balanced chemical reaction is:

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

So, option B is correct.

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