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Question
Glycerol is added to soap. It functions ______.
Options
As a filler
To increase leathering.
To prevent rapid drying.
To make soap granules.
Solution
Glycerol is added to soap. It functions to prevent rapid drying.
Explanation:
Glycerol is added to shaving soap to prevent rapid drying while to enhance the leathering property of soap, a gum called rosin is added to them. It forms sodium rosinate which lathers well.
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