Question

Convert dil. H₂SO₄ to –

1. Hydrogen sulphide 

2. An acid salt 

3. A normal salt. 

Answer 1

1. H₂SO₄ to hydrogen sulphide by the action of any sulphide on dil. H₂SO₄ 

FeS + H₂SO₄ (dil.) → FeSO₄ + H₂S↑

2. H₂SO₄ to an acid by the action of insufficient strong base with excess of dil. H₂SO₄

3. H₂SO₄ to a normal salt by the action of sufficient (or excess of) strong base (NaOH) with excess of dil. FI₂SO₄