Question

What happens when SO₂ reacts with :

(i) Cl₂

(ii) O₂ 

Answer 1

(i) It reacts with chlorine within the presence of charcoal as an impetus to give sulphuryl chloride (SO₂Cl₂) .

SO₂ + Cl₂ → SO₂Cl₂

Sulphur dioxide Chlorine (Catalyst) Sulphuryl Chloride

(ii) Within the sight of vanadium penta oxide ( catalyst) , it gives sulphur trioxide. V₂O₅

SO₂ + O₂  → SO₃

Sulphur dioxide Oxygen Sulphur trioxide