Question

Which color appear on reaction of acidified kmno4 solution with na2o3?

Answer 1

Alkenes react with potassium manganate(VII) solution in the cold. The colour change depends on whether the potassium manganate(VII) is used under acidic or alkaline conditions. If the potassium manganate(VII) solution is acidified with dilute sulphuric acid, the purplesolution becomes colourless.