`3.92 g` of ferrous ammonium sulphate crystals are dissolved in `100 ml` of water, `20 ml` of this
Channel: Doubtnut
Date: 2020-01-19

`3.92 g` of ferrous ammonium sulphate crystals are dissolved in `100 ml` of water, `20 ml` of this solution requires `18 ml` of `KMnO_(4)` during titration for complete oxidation. The weight of `KMnO_(4)` present in one litre of the solution is