Question

23. 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?


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Answer 1

Answer:

Hydrogen gas is usually liberated when an acid reacts with a metal. Ex: Metal+ acid--> salt+ hydrogen.

Answer 2

Answer:

Hydrogen gas liberated when acid reacts with a metal.

Acid + Metal ➡️ Salt + Hydrogen Gas

Example :

Zinc reacts with dilute sulphuric acid to form zinc sulphate along with that evolution of Hydrogen gas.

Equation :

Zn + H2SO4 ➡️ ZnSO4 + H2

Hope this helps u

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