Question

Which one of the following compounds has iodine in its the highest oxidation state?

• A. $KI$
• B. $K{I}_3$
• C. $I{F}_5$
• D. $KI{O}_4$

Answer 1

Answer: (D)

${\text{KIO}}_{\text{4}}$

$1+x-2\times 4=0$ ; $x=8-1=+7$ .