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प्रश्न
If water contains dissolved calcium hydrogen carbonate, out of soaps and synthetic detergents which one will you use for cleaning clothes?
उत्तर १
Synthetic detergents are preferred for cleaning clothes. When soaps are dissolved in water containing calcium ions, these ions form insoluble salts that are of no further use.
However, when synthetic detergents are dissolved in water containing calcium ions, these ions form soluble salts that act as cleansing agents.
उत्तर २
Calcium hydrogencarbonate makes water hard. Therefore, soap cannot be used because it gets precipitated in hard water. On the other hand, a synthetic detergent does not precipitate in hard water because its calcium salt is also soluble in water. Therefore, synthetic detergents can be used for cleaning clothes in hard water.
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संबंधित प्रश्न
How are synthetic detergents better than soap?
Explain the following term with a suitable example:
Cationic detergents
Explain the following terms with suitable examples - Anionic detergents
Explain the following terms with suitable examples - Non-ionic detergents
What are biodegradable and non-biodegradable detergents? Give one example of each.
Label the hydrophilic and hydrophobic parts in the following compounds.
CH3(CH2)10CH2OSO3 –Na+
Define the following term with a suitable example:
Cationic detergents
Which of the following are anionic detergents?
(i) Sodium salts of sulphonated long-chain alcohol.
(ii) Ester of stearic acid and polyethylene glycol.
(iii) Quarternary ammonium salt of amine with acetate ion.
(iv) Sodium salts of sulphonated long-chain hydrocarbons.
Which of the following statements are correct?
(i) Cationic detergents have germicidal properties.
(ii) Bacteria can degrade the detergents containing highly branched chains.
(iii) Some synthetic detergents can give foam even in ice cold water.
(iv) Synthetic detergents are not soaps.
Explain why some times foaming is seen in river water near the place where sewage water is poured after treatment?
Which category of the synthetic detergents is used in toothpaste?
Hair shampoos belong to which class of synthetic detergent?
Dishwashing soaps are synthetic detergents. What is their chemical nature?
Draw the diagram showing micelle formation by the following detergent.
\[\ce{CH3(CH2)10CH2OS\overset{-}{O}3\overset{+}{N}a}\]
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 terms with suitable examples Cationic detergents
Explain the following term with a suitable example.
cationic detergents
Explain the following term with suitable examples.
Cationic detergents
Explain the following term with suitable example:
cationic detergents
