Interstitial compounds, alloy formation and preparation of K2Cr2O7 and KMnO4Medium

Common Oxidations by Permanganate and Dichromate

Which of the following oxidation reactions are carried out by both K₂Cr₂O₇ and KMnO₄ in acidic medium ?
A. I^– → I₂
B. S^2– → S
C. Fe²⁺ → Fe³⁺
D. I^–→ IO₃^–
E. S₂O₃^2– → SO₄^2–
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