Question

Oxidation number of iodine varies from

• A. - 1 to + 1
• B. - 1 to + 7
• C. #ERROR!
• D. - 1 to + 5

Answer 1

Answer: (B)

- 1 to + 7

Answer 2

In KI it shows - 1 O.S & in $IF_7$ it shows +7 O.S hence O.S of I varies from - 1 to + 7.