When KMnO_(4) is reduced with oxalic acid in acidic medium, the oxidation number of Mn changes from :

When KMnO_(4) is reduced with oxalic acid in acidic medium, the oxidat

1.	When KMnO_(4) is reduced with oxalic acid in acidic medium, the oxidation number of Mn changes from :
Answer» 7 to 4 6 to 4 7 to 2 4 to 2 Solution :N//A