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Question
Name the gas evolved when a metal reacts with a dilute acid.
Name the gas evolved when a metal reacts with a dilute acid.
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Solution
When a metal reacts with a dilute acid like HCl, HNO3 etc. hydrogen gas is evolved. The reaction can be shown as follows:
2 M + dil.2 HCl ⟶ 2 MCl + H2↑
Hydrogen gas can be identified by bringing a burning matchstick near the mouth of the test tube in which reaction takes place. Hydrogen gas will burn with a pop sound.
When a metal reacts with a dilute acid like HCl, HNO3 etc. hydrogen gas is evolved. The reaction can be shown as follows:
2 M + dil.2 HCl ⟶ 2 MCl + H2↑
Hydrogen gas can be identified by bringing a burning matchstick near the mouth of the test tube in which reaction takes place. Hydrogen gas will burn with a pop sound.
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