Advertisements
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Explain the following terms with suitable examples - Non-ionic detergents
If water contains dissolved calcium hydrogen carbonate, out of soaps and synthetic detergents which one will you use for cleaning clothes?
Label the hydrophilic and hydrophobic parts in the following compounds.
CH3(CH2)10CH2OSO3 –Na+
Label the hydrophilic and hydrophobic parts in the following compounds.
What are anionic detergents? Give an example ?
What type of detergents are used in toothpaste?
Polyethyleneglycols are used in the preparation of which type of detergents?
Hair shampoos belong to which class of synthetic detergent?
Dishwashing soaps are synthetic detergents. What is their chemical nature?
Match structures given in Column I with the type of detergents given in Column II.
| 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) |
(d) Soap |
Explain the following term with suitable examples.
cationic detergents
Explain the following term with suitable examples.
cationic detergents
Explain the following term with suitable examples.
Cationic detergents
Explain the following term with suitable example cationic detergents.
Explain the following term with a suitable example:
Cationic detergents
Explain the following term with suitable example.
Cationic detergents
