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प्रश्न
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.
उत्तर
(i) Cationic detergents have germicidal properties.
(iii) Some synthetic detergents can give foam even in ice cold water.
(iv) Synthetic detergents are not soaps.
Explanation:
(i) Cationic detergents are quaternary ammonium salts of amines with acetates, chlorides or bromides as anions. These detergents have germicidal properties.
(ii) Bacteria cannot degrade the detergents containing highly branched chains, therefore, in most of the detergents used these days, the branching is kept to a minimum so that the detergents become easily biodegradable.
(iii) Some synthetic detergents can give foam even in ice-cold water.
(iv) Synthetic detergents are cleansing agents which have all the properties of soaps, but which actually do not contain any soap.
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संबंधित प्रश्न
Explain the following terms with suitable examples - Anionic detergents
Label the hydrophilic and hydrophobic parts in the following compounds.
CH3(CH2)10CH2OSO3 –Na+
What type of detergent are used in toothpastes?
Which of the following is an example of liquid dishwashing 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 |
Synthetic detergents have advantage over usual soaps as far as cleansing power is concerned. But use of synthetic detergents over a long time creates environmental pollution. How can the pollution caused by synthetic detergents be minimised? Classify the detergents according to their chemical nature.
Define the following:
Cationic detergents
Explain the following term with suitable examples.
Cationic detergents
Explain the following term with a suitable example:
Cationic detergents
