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2015-11-12T22:00:15+05:30

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KMnO4 solutions are dark purple. When used as a titrant, as soon as the endpoint is reached and the KMnO4- is in excess, the solution has a permanent pink hue (provided that the solution is initially colorless). Thus KMnO4 acts as its own indicator.
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2015-11-12T22:22:37+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
KMnO4 has its own colour. It is pink in colour. When it is used for titration, at the end point, the colour of the solution changes making it a self indicator.
If the solution is colourless initially, it changes to pinkish colour at the end. Otherwise, it changes colour according to the combination of colours.
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