Potassium permanganate is titrated against ferrous ammonium sulphate in acidic medium, the equivalent mass of potassium permanganate is :

Potassium permanganate is titrated against ferrous ammonium sulphate i

1.	Potassium permanganate is titrated against ferrous ammonium sulphate in acidic medium, the equivalent mass of potassium permanganate is :
Answer» `("molecular mass")/(3)` `("molecular mass")/(5)` `("molecular mass")/(2)` `("molecular mass")/(10)` Solution :The ionic reaction involved in titration is : `MnO_(4)^(-)+5Fe^(2+)+8H^(+) to MN^(2+)+4H_(2)O+5Fe^(3+)` Since, a molecular of `KMnO_(4)` accepts 5 electrons in ACID medium, its EQUIVALENT mass will be `(("molecular mass")/(5))`.