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?

Answer 1

Hey friend here is ur answer,

HYDROGEN

It gives out a pop sound

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Answer 2

Hydrogen gas is released when an acid reacts with a metal.

For example :- Na + HCl --> NaCl + H2

• This gas is tested due to pop sound when it is burnt.