JEE Main 2022 · 28 Jul · Shift 2 · Chemistry Q57

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ChemistryInteger+4 / -1Question 57 of 90

On reaction with stronger oxidizing agent like $\mathrm{KIO_4}$ , hydrogen peroxide oxidizes with the evolution of $\mathrm{O_2}$ . The oxidation number of I in $\mathrm{KIO_4}$ changes to ______.

Your answer

Answer and worked solution

Official answer: 5

$\mathrm{KIO_4\rightarrow KIO_3}$ : iodine goes from +7 to +5.

Answer: 5

Topics:Oxidation number Water and hydrogen peroxide

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JEE Main 2022 · 28 Jul · Shift 2, Chemistry question 57