Question

In which of the following compounds manganese has oxidation number equal to that of iodine in $KIO_{4}$?

• A. Potassium Manganate
• B. Potassium permanganate
• C. Manganous chloride
• D. Manganese chloride

Answer 1

Answer: (B)

Potassium permanganate

Answer 2

Oxidation number of I in $KIO_{4} = + 7$

Oxidation number of Mn in potassium manganate $K_{2}MnO_{4} = + 6$

Oxidation number of Mn in potassium permanganate $KMnO_{4} = + 7$

Thus oxidation number of Mn in $KMnO_{4}$is equal to oxidation number of I in $KIO_{4}$