Question

Zinc granules on treating with an acid X, form the zinc sulphate (ZnSO4) salt along
with the evolution of a gas Y which burns with a pop sound when brought near to a
burning candle. Identify the acid X and gas evolved Y.

Answer 1

Answer:

Explanation:

Hydrogen gas burns with a pop sound. The Brainliest Answer! Observations- 1) When dilute sulphuric acid is poured on zinc granules, then zinc sulphate is formed along with the evolution of a gas. Zinc is more reactive than hydrogen, so displaced it from sulphuric acid.

Answer 2

Answer:

Acid X is $H_{2} SO_{4}$ and gas evolved Y is $H_{2}$

Explanation:

Zinc granules react with acid and form zinc sulfate salt and gas is evolved which burns with a pop sound.

Hydrogen gas is the only gas that burns with a pop sound. Therefore, the gas that evolved is hydrogen gas.

Since it is an example of a displacement reaction as zinc is displacing the hydrogen atom and forming zinc sulfate, therefore, acid is sulfuric acid.

$\[Zn(s) + {H_2}S{O_4}(aq) \to ZnS{O_4}(aq) + {H_2}(g)\]$

Therefore, acid X is sulfuric acid and gas evolved Y is hydrogen gas.