Question

Reaction of acidified kmno4 with sulphide ion

Answer 1

The reaction will be

2KMnO4 + 5 H2SO3 --> K2SO4 +2 MnSO4 +2 H2SO4 + 3H2O

As 5 mole of sulphite reacts with 2 mole of  KMnO4 

Then 1 mole will react with 2/5 mole of KMnO4



Hope this question's answer are helpful
and press the point of thanks