p-Block elementsHard

Question

Which of the following reactions depict the oxidising behaviour of H₂SO₄ ?

Options

A.2PCl₅ + H₂SO₄ → 2POCl₃ + 2HCl + SO₂ Cl₂

B.2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O

C.NaCl + H₂SO₄ → NaHSO₄ + HCl

D.2HI + H₂SO₄ → I₂ + SO₂ + 2H₂O

Solution

-1 + 6 0 + 4
2HI + H₂SO₄ → I₂ + SO₂ + 2H₂O
Thus H₂SO₄ oxidises HI to I₂.

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