The following reaction occurs in aqueous acid solution:
NO₃^- + I^- → IO₃^- + NO₂
What is the oxidation state of iodine in IO₃^-?

Question

The following reaction occurs in aqueous acid solution: NO₃^- + I^- → IO₃^- + NO₂ What is the oxidation state of iodine in IO₃^-? A) +5 B) 0 C) -3 D) -5 E) +3

Quizplus · Accepted Answer

In the compound IO₃^-, iodine has an oxidation state of +5. This is determined by setting up an equation considering the oxidation states of oxygen (-2) and assuming the overall charge of the compound is 0.

The Following Reaction Occurs in Aqueous Acid Solution