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In laboratory, a student added 3 mL etha...

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 ______________ .

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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