MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistryRedox Reactions/Volumetric AnalysisConcept of Oxidation and Reduction

Oxidation number of iodide in IO ,IO ,KI and I respectively, are

A.-1, -1, 0, +1 (b) +3, +5, +7, 0

C.+5, +7, -1, 0 (d) -1, -5, -1, 0✓ Correct

Explanation

Let us consider the oxidation states of iodine for each given compound as x. As we know, 2I is in elemental state 3 4 2 IO x 6 1 x 5 IO x 8 1, x 7 KI 1 x 0, x 1 I x 0 → → → → Therefore, C is the right option.

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