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Which gas is how will you test for the gas which is liberated when hydrochloric acid react an with active metal.

Posted by Sonu Singh 5 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Gaurav Seth 5 years, 5 months ago

Hydrogen gas

Hydrogen gas is liberated when an active metal reacts with hydrochloric acid. For testing the presence of hydrogen gas, bring a burning candle near the mouth of the test tube in which the reaction is taking place. If the gas burns with a popping sound, then it can be concluded that it is hydrogen.

2H2(g) + O2(g) → 2H2O(g)

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CBSE > Class 10 > Science