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प्रश्न
Explain why synthetic detergents are superior to soap.
उत्तर
Synthetic detergents are superior to soap because synthetic detergents work both in soft water and hard water. In contrast, soaps work only in soft water and they are not effective in hard water.
संबंधित प्रश्न
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
People use a variety of methods to wash clothes. Usually after adding the soap, they ‘beat’ the clothes on a stone, or beat it with a paddle, scrub with a brush or the mixture is agitated in a washing machine. Why is agitation necessary to get clean clothes?
Why is common salt (sodium chloride) added during the preparation of soap?
How is soap made? Write a word equation involved in soap making.
Differentiate between:
Detergents and Soaps.
Soap is a salt of ______ and sodium hydroxide.
How will you check with the help of soap powder whether water is hard?
What is meant by 'surface activity'?
We are using ______ to remove strong stains on the clothes.
Why do soaps not work effectively in hard water?
