If dilute sulphuric acid is added to granulated zinc, which of the following gases will be evolved?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Hydrogen.
When dilute sulphuric acid is added to granulated zinc, a chemical reaction takes place, resulting in the evolution of hydrogen gas. The zinc reacts with the sulphuric acid to form zinc sulphate (ZnSO₄) and hydrogen gas (H₂). The reaction can be represented as:
Zn + H₂SO₄ → ZnSO₄ + H₂↑.
Bubbles of hydrogen are observed during the reaction. This is a classic example of a metal-acid reaction, where an active metal displaces hydrogen from the acid.