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प्रश्न
How are synthetic detergents better than soap?
उत्तर १
Soaps work in soft water. However, they are not effective in hard water. In contrast, synthetic detergents work both in soft water and hard water.
Therefore, synthetic detergents are better than soaps.
उत्तर २
They can be used in hard water as well as in acidic solution. The reason being that sulphonic acids and their calcium and magnesium salts are soluble in water thus they do not form curdy white precipitate with hard water but the fatty acids and their calcium and magnesium salts of soaps are insoluble. Detergents also works in slightly acidic solution due to formation of soluble alkyl hydrogen sulphates. Soaps react with acidic solution to form insoluble fatty acids.
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| Column I | Column II |
| (i) \[\ce{CH3(CH2)16COO(CH2CH2O) nCH2CH2OH}\] | (a) Cationic detergent |
| (ii) \[\ce{C17H35COO- Na+}\] | (b) Anionic detergent |
| (iii) \[\ce{CH3-(CH2)10CH2SO3- Na+}\] | (c) Nonionic detergent |
|
(iv) |
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cationic detergents
Explain the following term with suitable examples.
cationic detergents
Explain the following term with a suitable example:
Cationic detergents
Explain the following term with suitable example:
cationic detergents
