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प्रश्न
Name three chemicals responsible for the surface activity of various detergents.
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उत्तर
Chemicals responsible for the surface activity of various detergents are alkylbenzene sulphonate, alcohol ethoxy sulphates and alkyl sulphates.
संबंधित प्रश्न
List two problems that arise due to the use of detergents instead of soaps.
Hard water is not available for an experiment. Some salts are given below :
(I) Sodium chloride
(II) Sodium sulphate
(III) Calcium chloride
(IV) Calcium sulphate
(V) Potassium chloride
(VI) Magnesium sulphate
Select from the following group of these salts, each member of which may be dissolved in water to make it hard.
(A) I, II, V
(B) I, III, V
(C) III, IV, VI
(D) II, IV, VI
Distinguish between esterfication and saponification reaction with the help of the chemical equations for each.
Why is soap not suitable for washing clothes when the water is hard?
What is a detergent? Name one detergent.
Give the reason of formation of scum when soaps are used with hard water.
A student is testing water to know which is best for cleansing purposes with soaps. He would find that the cleansing action of soaps is best when he uses water obtained from
(a) rain
(b) tap
(c) hand pump
(d) pond
What is the difference between the chemical composition of soaps and detergents? State in brief the action of soaps in removing an oily spot from a shirt. Why are sops not considered suitable for washing where water is hard?
Explain why often coloured spots are formed on clothes during washing.
The soap molecule has a
