Q27 of 61 Page 1

While studying saponification reaction for the preparation of soap, the teacher suggested to a student to add a small quality of common salt to the reaction mixture. The function of common salt in this reaction is to:

The correct answer is: option (d).

Saponification is the reaction of alkaline hydrolysis of ethyl ethanoate. The Ethyl ethanoate is heated by addition of Sodium hydroxide results in formation of Sodium Ethanoate and Ethanol. Thus, reaction is used for making soaps.


CH3COOC2H5 + NaOH CH3COONa + C2H5OH


common salt is added to precipitate out the soap during saponification reaction because salt helps in decreasing the solubility of the soap and precipitating it out.

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