When a metal is reacted with water. Among the following which gas will be liberated?

Chlorine

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Oxygen

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Hydrogen

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Carbon dioxide

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Solution

The correct option is C
Hydrogen

When metal reacts with water $H_{2}$ gas is released.
For eg: $N a + 2 H_{2} O \to N A O H + H_{2} ↑$
Here, Na replaces hydrogen ion from water molecules and forms sodium hydroxide and releases hydrogen gas.

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Similar questions

Which of the following reacts with metal carbonates to produce carbon dioxide and water?

The green house gas is:

(a) oxygen (b) nitrogen

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