Question

Acidified potassium dichromate reacts with potassium iodide and oxidizes it to$I_{2}$. What is the oxidation state of chromium in the products of the reaction?

• A. +4
• B. +6
• C. +3
• D. +2

Answer 1

Answer: (C)

+3

Answer 2

During the reaction $K_{2}Cr_{2}O_{7}$is converted to$Cr_{2}(SO_{4})_{3}$

$$$ + 7H_{2}O + 3I_{2}$In $Cr_{2}(SO_{4})_{3},O.S.$ of Cr is +3