Answers

2015-09-02T20:15:31+05:30
H₂ gas is liberated.
we can test this gas by taking it in a test tube and when we will bring a burning splinter near its mouth then the splinter will subsides with a pop sound. This confirms the presence of H₂.
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2015-09-02T22:49:18+05:30
Hydrogen gas is liberated when acids produce ions in aqueous solution


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