Chemistry
Grade-7
Easy
Question
_________
- Fatty acids
- Acetic acid
- Carbonic acid
- Mineral acid
Hint:
They belong to the group of carboxylic acid and have aliphatic chain.
The correct answer is: Fatty acids
- Soaps are sodium salts of Fatty acids.
- Soap is a mixture of sodium salts of various natural fatty acids. Adding air bubbles to melted soap reduces the density of the soap and makes it float on water.
- If the fatty acid salt contains potassium instead of sodium, the foam will be softer. Soap is made by saponification or base hydrolysis of fats and oils. Sodium carbonate or sodium hydroxide is currently used to neutralize fatty acids and convert them to salts.
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