Question

Name a gas which is liberated when an acid reacts with a metal.Illustrate it with an example.How will you test the presence of this gas

Answer 1

Answer:

The gas is hydrogen.

Explanation:

When a metal reacts with an acid, a corresponding salt of the metal is formed + hydrogen.

For eg:-

Zn +2 HCl ----------->ZnCl2 + H2.

When we burn the gas, it will burn with a pale blue flame and poppping sound will be produced.