why the colour of potassium permangante disappers if it's added to warm solution of ethanol
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an atom of oxygen thus converting the ethanol to acetic acid. Initially colour disappears because coloured permanganate ions of potassium permanganate are consumed to oxidise ethanol. When excess is added colour does not change because there is no more alcohol left and hence there is no reaction
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Because ethanol is oxidized and form ethanoic acid. When potassium permanganate reacts with ethanol, it releases nascent oxygen that is an atom of oxygen thus con initially colour disappears
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