In redox reaction of So2 with KMnO4 in acidic medium?

A. SO2 oxidizes KMnO4
B. SO2 Reduces KMnO4
C. KMnO4 is inert in acidic medium
D. SO2 can’t undergo redox reaction


Correct Answer: B. SO2 Reduces KMnO4

Detail about MCQs

In the redox reaction of SO2 with KMnO4 in acidic medium, the correct answer is: SO2 Reduces KMnO4
In this reaction, SO2 acts as a reducing agent, causing the reduction of KMnO4 (manganese in KMnO4 undergoes a change in oxidation state from +7 to +2) while itself getting oxidized to sulfuric acid (H2SO4). This is a classic example of a redox reaction, where one substance is oxidized (SO2) while the other is reduced (KMnO4).

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