Question

Name two other acids other than sulphuric acid, which can be prepared by using sulphuric acid.

Answer 1

Hydrochloric acid and nitric acid can be prepared using concentrated sulphuric acid, which will displace these acids from their salts, as shown in the given reactions:

NaCl + H₂SO₄ $\stackrel{200°\mathrm{C}}{\to }$ NaHSO₄ + HCl
KNO₃ + H₂SO₄ $\stackrel{<200°\mathrm{C}}{\to }$ KHSO₄ + HNO₃