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NTA Abhyas JEE Main2020Chemistryp Block Elements (Group 15, 16, 17 & 18)Practice

The change in the oxidation state of iodine when excess chlorine water is added to an iodide salt is

Correct answer

6

Step-by-step solution

2 KI + Cl 2 → 2 KCl + I 2 5 Cl 2 + I 2 + 6 H 2 O → 10 HCl + 2 HIO 3 Change in oxidation state of iodine = 5 − ( − 1 ) = 6

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