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प्रश्न
What are biodegradable and non-biodegradable detergents? Give one example of each.
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उत्तर १
Detergents that can be degraded by bacteria are called biodegradable detergents. Such detergents have straight hydrocarbon chains. For example: sodium lauryl sulphate
Detergents that cannot be degraded by bacteria are called non-biodegradable detergents. Such detergents have highly-branched hydrocarbon chains. For example: sodium -4- (1, 3, 5, 7- tetra methyl octyl) benzene sulphonate
उत्तर २
Detergents having straight chain hydrocarbons are easily degraded (or decomposed) by microorganisms and hence are called biodegradable detergents while detergents containing branched hydrocarbon chains are not easily degraded by the microorganisms find hence are called non-biodegradable detergents. Consequently, non-biodegradable detergents accumulate in rivers and water ways thereby causing severe water pollution. Examples of biodegradable detergents are sodium lauryl sulphate, sodium 4-(-l-dodecyl) benzenesulphonate and sodium 4-(2-dodecyl) benzenesulphonate.
Examples of non-biodegradable detergents is sodium 4-(1, 3,5,7 – tetramethyloctyl) benzene sulphonate.
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.
Label the hydrophilic and hydrophobic parts in the following compounds.
`CH_3(CH_2)_16COO(CH_2CH_2O)_nCH_2CH_2OH`
Define disinfectants with a Suitable example?
What are anionic detergents? Give an example ?
Define the following term with a suitable example in each:
Cationic detergents
Polyethyleneglycols are used in the preparation of which type of 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.
Which category of the synthetic detergents is used in toothpaste?
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 term with suitable example.
Cationic detergents
Define the following:
Cationic detergents
Explain the following term with suitable examples.
cationic detergents
Explain the following terms with suitable examples Cationic detergents
Explain the following term with suitable examples.
Cationic detergents
Explain the following term with suitable example:
cationic detergents
