1(vii)
The oxidizing agent in the equation S + 2H2SO4 ⟶ 3SO2 + 2H2O is:
- (a)Sulphur
- (b)Sulphuric acid
- (c)Sulphur dioxide
- (d)Water
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Sulphuric acid
Reason — Sulphuric acid donates oxygen atoms to sulphur, leading to the formation of SO2 and water (H2O). Thus, sulphuric acid acts as an oxidizing agent.