Explain chemical properties of dilute sulphuric acid.

Chemical properties of dilute sulphuric acid:

i. When reacted with metal, dilute sulphuric acid produces metal sulphates and hydrogen gas. For examples:

ii. When dilute sulphuric acid reacts with oxides, hydroxides or carbonates of metal, it produces metal sulphates, CO₂ and water. For examples:

Oxide: ZnO + H₂SO₄→ ZnSO₄ + H₂O

Hydroxide: NaOH + H₂SO₄→ Na₂SO₄ +2H₂O

Carbonate: CaCO₃ + H₂SO₄→ CaSO₄ +H₂O + CO₂

iii. When dilute sulphuric acid reacts with sodium carbonate and sodium bicarbonate, it forms sodium sulphate and carbon dioxide.