Answers

2016-03-17T15:26:21+05:30
Because potassium permanganate has a deep violet colour which is highly visible to naked eye when it changes or not
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2016-03-17T15:26:41+05:30
Because potassium permanganate has a deep violet colour which is highly visible to the naked eye and when one titrates it and there is a loss of colour, it is apparent. So one does not need an indicator to tell you the end point.
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