Iodine has +7 oxidation state in :

CHEMISTRY · Single correct · A Level · Chemistry · Oxidation, reduction and redox reactions · Oxidation, reduction and redox reactions

Problem

Iodine has +7 oxidation state in : (1)

\text{HIO}_4

(2)

\text{H}_3\text{IO}_5

(3)

\text{H}_5\text{IO}_6

(4) all of these