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JEE Main202228 Jul 2022Evening ShiftChemistryHydrogenActual

On reaction with stronger oxidizing agent like KIO 4 , hydrogen peroxide oxidizes with the evolution of O 2 . The oxidation number of I in KIO 4 changes to

Correct answer

5

Step-by-step solution

Hydrogen peroxide acts as an oxidising as well as reducing agent in both acidic and alkaline media. But its reducing action is more effective in alkaline medium KIO 4 + H 2 O 2 → KIO 3 + O 2 + H 2 O The oxidation number of iodine in IO 3 - is +5 The geometry of iodine containing compound changes from tetrahedral to pyramidal in the above reaction

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