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Question
How will you test for the gas which is liberated when hydrochloric acid reacts with an active metal?
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Solution
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.
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.
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