1) On adding the pink coloured solution of potassium permanganate to ethanoic acid
●choose the correct sentence;
a) the pink colour completely dissappears
b)the pink colour dissappears at first
c)the pink colour remains
d)the pink colour changes to orange.
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Answer:
The pink colour completely dissappears
Explanation:
When a solution of ethyl alcohol and alkaline KMnO4is heated the pink colour of the solution disappears. Since, KMnO4 is a strong oxidising agent it oxidises ethanol to ethanoic acid by donating nascent oxygen. If excess of KMnO4 is added the the purple color will persist.
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