Q10 of 56 Page 1

Name the oxidizing agent used for the conversion of ethanol to ethanoic acid. Distinguish between ethanol and ethanoic acid on the basis of (i) litmus test, (ii) reaction with sodium hydrogen carbonate.

The oxidizing agent used for the conversion of ethanol to ethanoic acid is Acidified K2Cr2O7


(i) Litmus test:


Ethanol doesn’t changes the color on any of the litmus solution which proves that Ethanol is a neutral compound.


When blue litmus solution turns red on addition of the organic compound proves that the compound is acidic in nature and hence it is Ethanoic acid.


When some blue litmus solution is added to the organic compound (to be tested), if the blue litmus solution turns red; it shows that the organic compound is acidic and hence it is ethanoic acid.


(ii) Reaction with sodium carbonate:


If there is no reaction on addition of a pinch of sodium carbonate in the compound, then the compound is Ethanol and if carbon dioxide gas is evolved along with the brisk effervescence, then the organic compound is Ethanoic acid.


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