Explain why does colour of `KMnO_(4)` disappear when oxalic acid is ad – InterviewSolution

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1.	Explain why does colour of `KMnO_(4)` disappear when oxalic acid is added to its solution in acidic medium?
Answer» When oxalic acid is added to acidic solution of `KMnO_(4)`, its colour disappear due to reduction of `MnO_(4)^(-)` ion to `Mn^(2+)`. Chemical reaction occuring during this neutralisation reaction is as follows `5C_(2)O_(4)^(2-)+underset(("Coloured"))(2MnO_(4)^(-))+16H^(+)rarrunderset(("Colourless"))(2Mn^(2+))+8H_(2)O+10CO_(2)`

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