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Properties of Water

Hydrogen can ...

Question

Hydrogen can be obtained from water, by the action of water on

A

Calcium carbide

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B

Calcium hydride

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C

Calcium oxide

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D

Calcium

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Solution

The correct options are
B
Calcium hydride

D
Calcium

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

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

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