Question

Name the gas which is usually liberated when a metal reacts with a dilute mineral acid. Illustrate with an example. How will you test for the presence of the gas?

Answer 1

Answer:

when we react hydrochloric sulfuric acid with with iron the iron displaces the hydrogen due to its high reactivity than hydrogen comes out in the form of gas.

can we take a burning matchstick near the opening of the test tube then a pop -pop sound comes

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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