`0.56 g` of lime stone was treated with oxalic acid to give `CaC_(2)O_(4)`. The precipitat
Channel: Doubtnut
Date: 02/08/2020

`0.56 g` of lime stone was treated with oxalic acid to give `CaC_(2)O_(4)`. The precipitate decolorized `45 ml` of `0.2N KMnO_(4)` in acid medium. Calculate `%` of `CaO` in lime stone.