Question

In the reaction between moist SO₂ and acidified permanganate solution:

• A. SO₂ is oxidised to SO₄²⁻, MnO₄⁻ is reduced to Mn²⁺
• B. SO₂ is reduced to S, MnO₄⁻ is oxidised to MnO₄
• C. SO₂ is oxidised to SO₃²⁻, MnO₄⁻ is reduced to MnO₂
• D. SO₂ is reduced to H₂S, MnO₄⁻ is oxidised to MnO₄

Hint:

The reaction shows SO₂ oxidation to SO₄²⁻ and MnO₄⁻ reduction to Mn²⁺.

Answer 1

The Correct Option is A

SO₂ is oxidised to SO₄²⁻, and MnO₄⁻ is reduced to Mn²⁺ in the reaction: 2MnO₄⁻+3SO₂+4H⁺→2Mn²⁺+3SO₄²⁻+2H₂O.