Hydrogen peroxide solution 20mL reacts quantitatively with a

Last updated: 6/27/2023

Hydrogen peroxide solution 20mL reacts quantitatively with a solution of KMnO4 20mL acidified with dilute H SO4 The same volume of the KMnO4 solution is just decolourised by 10mL of MnSO4 in neutral medium simultaneously forming a dark brown precipitate of hydrated MnO2 The brown precipitate is dissolved in 10mL of 0 2M sodium oxalate under boiling condition in the presence of dilute H SO4 The strength of H O2 solution in mg per 100ml solution is A 340 B 680 C 120 D 100