Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?

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Kavita

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Hydrogen gas is liberated when Acid reacts with a metal. Example, When Zn + 2Hcl ......... Zncl2 + Hydrogen GAS IS FORMED. It can be tested by bringing a burning candle near the gas, Tha candle continues with a pop sound.
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Maths, Phy. and Chem Teacher

By thumb rule when any metal reacts with liberates Hydrogen gas. 2Na + 2HCl ------------- 2NaCl + Hydrogen gas
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Maths, Phy. and Chem Teacher

By thumb rule when any metal reacts with liberates Hydrogen gas. 2Na + 2HCl ------------- 2NaCl + Hydrogen gas
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