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In a laboratory, a student added 2 mL of...

In a laboratory, a student added 2 mL of ethanol and 4 mL of sodium carbonate solution in a test tube and warmed the mixture for few minutes. He than slowly added few drops of potassium permanganate to this warm solution with constant stirring. He observed that the pink colour of potassium permanganate had disappeared. This is because _________

A

ethanol is reduced to ethane

B

ethanol is oxidized to acetic acid

C

ethanol is reduced to methanoic acid

D

ethanol is oxidized to acetone.

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In laboratory, a student added 3 mL ethanol and 5 mL sodium carbonate in a test tube and warmed the mixture for few minutes. He then slowly added few drops of potassium permanganate to this warm solution with constant stirring. He observed that the pink colour of potassium permanganate had disappeared. This is because ______________ .

Apparatus: Test tube, Bunsen burner, measuring cylinder, dropper, etc. Chemicals : Ethanol,sodium carbonate, dilute solution to it and warm the mixture by holding the test tube on the burner for a while. Do drop wise addition of a dilute solution of potassium permanganate to this warm mixutre with stirring. Does the typical pink colour of potassium permanganate stay as it is on addition? Does the pink colour stop vanishing and stays on after some time of the addition process?