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Action of Water on Calcium Carbide

Question

You can make acetylene by dropping water on:
burning coal
calcium carbonate
calcium carbide
chalk

A

calcium carbonate

B

calcium carbide

C

chalk

D

burning coal

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Solution

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$C a C_{2} c a l c i u m c a r b i d e + H_{2} O ⟶ C_{2} H_{2} A c e t y l e n e + C a {(O H)}_{2}$
Thus, by dropping water in calcium carbide, acetylene can be prepared.

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