Question

Which one of the following has the highest oxidation number of iodine?

• A. $I_3$
• B. $KI$
• C. $I{F}_5$
• D. $KI{O}_4$

Answer 1

Answer: (D)

$KI{O}_4$
$1+x-2\times 4=O;x=8-1=+7$