In which of the following equations does sulfuric acid act asan oxidizing agent? In which does it act as an acid? Explain. (a) 4H⁺(aq) +SO₄²⁻(aq) +2NaI(s)→2Na⁺(aq)+ I₂(s)+ SO₂(g)+ 2H₂O(l) (b) BaF₂(s) +2H⁺(aq)+ SO₄²⁻(aq)→2HF(aq)+ BaSO₄(s)

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