p-Block elementsHard

Question

Iodine is liberated from KI solution when treated with :

Options

A.ZnSO₄

B.CuSO₄

C.NiSO₄

D.FeSO₄

Solution

CuSO₄ + 2K+ → K₂SO₄ + CuI₂ ; 2CuI₂ → Cu₂I₂ + I₂.

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