Chemistry, asked by jerinjs7776, 1 year ago

Why the colour of potashium pergamanent dissappear if it is added to warm solution of ethanol?

Answers

Answered by kakolirudrabisws
0
When potassium permanganate reacts with ethanol, it releases oxygen. ie, 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.

C 2 H 5 OH (WITH ALKALINE KMnO 4) CH 3 COOH+H 2 O

Remember :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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