Question

which gas is usually liberated when an acid reacts with metal​

Answer 1

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Here is your answer >>>>>>>

Hydrogen gas is liberated is usually liberated when an acid reacts with metal.

Answer 2

Answer:

hydrogen.

Explanation:

when metal reacts with an acid. As some metals are highly reactive than hydrogen. So displacement reaction occurs and as a result Hydrogen gas is formed making the beaker warm....