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प्रश्न
What are the two different types of molecules found in the soap?
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उत्तर
- Loving water molecules.
- Hating water molecules.
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संबंधित प्रश्न
Why do soaps not form lather in hard water?
List two problems that arise due to the use of detergents instead of soaps.
In a locality, hard water, required for an experiment, is not available. However, the following salts are available in the school laboratory:
1. Sodium sulphate
2. Calcium sulphate
3. Magnesium chloride
4. Sodium chloride
5. Calcium chloride
6. Potassium sulphate
Which of the above salts may be dissolved in water to obtain hard water for the experiment?
(A) 2, 3 and 5
(B) 1, 2 and 5
(C) 1, 2, 4 and 6
(D) 3 and 5 only
Why have detergents replaced soap as a washing agent?
Which of the two is better for washing clothes when the water is hard: soap or detergent? Give reason for your answer.
Explain the cleansing action of soap. Draw diagrams to illustrate your answer.
Give the reason of formation of scum when soaps are used with hard water.
What is a soap?
Explain the action of soap in removing an oily spot from a piece of cloth.
Explain why synthetic detergents are superior to soap.
