The soap can be hardened by: - Vidyadip

MCQ

The soap can be hardened by:

✓
Adding sodium carbonate or sodium silicate during its manufacture.
B
Adding sodium chloride.
C
Adding potassium hydroxide.
D
Adding animal fat and coconut oil.

✓

Answer

Correct option: A.

Adding sodium carbonate or sodium silicate during its manufacture.

Saponification is a process when triglyceride is treated with a strong base, which accelerates the cleavage of ester bond and releases fatty acids and glycerol.
Soaps are precipitated by salting it out with saturated sodium chloride or sodium silicate to make it hard.

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