KCET2024Chemistryd and f Block Elements
In the reaction between moist SO ₂ and acidified permanganate solution.
Options
- ASO ₂ is oxidised to SO ₄²⁻ . MnO ₄⁻ is reduced to Mn ²⁺ .
- BSO ₂ is reduced to S . MnO ₄⁻ is oxidised to MnO ₄ .
- CSO ₂ is oxidised to SO ₃²⁻ . MnO ₄⁻ is reduced to MnO ₂ .
- DSO ₂ is reduced to H ₂ ~S . MnO ₄⁻ is oxidised to MnO ₄ .
Correct answer
A. SO ₂ is oxidised to SO ₄²⁻ . MnO ₄⁻ is reduced to Mn ²⁺ .
Step-by-step solution
(a) The reaction between moist SO ₂ and acidified permanganate solution is as follows Thus, from the reaction it is clear that SO ₂ is oxidised to SO ₄²⁻ while MnO ₄⁻ is reduced to Mn ²⁺ .