Question

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.

your own words​

Answer 1

Explanation:

hydrogen (H2) gas is liberated when there is a reaction between an avid and a metal.

Mg+HCl➡MgCl+H2

the presence of this gas can be tested by getting a burning matchstick near it,if it burns with a popping sound then the gas liberated is hydrogen

Answer 2

HEY FRIEND HERE IS UR ANSWER ,

When an acid react with a metal it liberates hydrogen gas.

     E.g., Zn(s) + 2HCl(aq) ZnCl2 (aq) + H2(g)

To test the presence of H2 gas, bring a burning splinter near the mouth of the test tube where H2 gas is released, the match stick bums with a pop sound.

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