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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