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The colour of KMnO4 disapperars when oxa...

The colour of `KMnO_4` disapperars when oxalic acid is added to its solution in acidic medium. This can be explained as

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As we know with increase in tempera.ure rate ol reaction increases, Hence, we heat oxalic acid solution before starling of titration to increase the rate of decolourisation.
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NCERT EXEMPLAR ENGLISH-CHEMICAL KINETICS-SHORT ANSWER TYPE QUESTION
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