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Hydrochloric Acid

Acids react w...

Question

Acids react with metals to liberate _________gas

A

Carbon dioxide

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B

Hydrogen

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C

Carbon monoxide

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D

Water

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Solution

The correct option is B Hydrogen
Hydrogen gas is liberated when an acid reacts with a metal. For example, when zinc metal reacts with dil. hydrogen is evolved and salt zinc chloride is formed as: It can be tested by bringing a burning candle near the gas.

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Q. (a) How will you test for the gas which is liberated when hydrochloric acid reacts with an active metal?
(b) Name any two active metals which can be used with hydrochloric acid to liberate the same gas.

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