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Consider the reaction : H2SO3(aq) + Sn4+(aq) + H2O(l) → Sn2+(aq) + HSO4-(aq) + 3H+(aq) Which of the following statements is correct ?

1. Sn4+ is the oxidizing agent because it undergoes oxidation
2. Sn4+ is the reducing agent because it undergoes oxidation
3. H2SO3 is the reducing agent because it undergoes reduction
4. H2SO3 is the reducing agent because it undergoes oxidation

Correct answer: Sn4+ is the oxidizing agent because it undergoes oxidation

Solution

The correct option is right because Sn4+ gains electrons during the reaction, which means it is reduced, making it the oxidizing agent. An oxidizing agent facilitates the oxidation of another substance while itself being reduced.

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