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 ethane
C
ethanol is oxidized to ethanoic acid
D
ethanol is oxidized to ethanoic acid
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The correct Answer is:
D
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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 _________
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?