MCQ
Sodium chloride is added to the solution after saponification to cause the:
- AHydrolysis of soap
- ✓Precipitation of soap
- CSedimentation of soap
- DNone of these
✓
Answer
Correct option: B.
Precipitation of soap
Triglycerides are treated with a strong base which releases the fatty acid salt and glycerol.
Soaps are precipitated by salting it out with saturated sodium chloride.
Saponification value is the amount of base required to saponify a fat.
Common salt is added to precipitate out all the soap from the aqueous solution.
Adding of common salt to soap solution decreases the solubility of soap due to which all the soap precipitates out from the solution in the solid form.
This process is called salting out of soap.
Soaps are precipitated by salting it out with saturated sodium chloride.
Saponification value is the amount of base required to saponify a fat.
Common salt is added to precipitate out all the soap from the aqueous solution.
Adding of common salt to soap solution decreases the solubility of soap due to which all the soap precipitates out from the solution in the solid form.
This process is called salting out of soap.
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