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प्रश्न
Explain why soap cannot be used in hard water.
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उत्तर
Soaps cannot be used in hard water because they lose their cleansing property when used with it. Soaps do not form lather with hard water and instead form scum, as a result of which they lose their cleansing property.
संबंधित प्रश्न
Distinguish between esterfication and saponification reaction with the help of the chemical equations for each.
Mention the essential material (chemicals) to prepare soap in the laboratory. Describe in brief the test of determining the nature (acidic/alkaline) of the reaction mixture of saponification reaction.
What are the raw materials required for making soap in a laboratory (or at home)?
What is a detergent?
Describe the structure of a soap molecule with the help of a diagram.
Consider the following oils :
(I) Mobil oil
(II) Castor oil
(III) Turpentine oil
(IV) Kerosene
(V) Mustard oil
(VI) Coconut oil
Which of these can be used for prepartion of soap?
(a) I, II, III, VI
(b) II, V, VI
(c) II, III, V, VI
(d) II, III, VI
The chemical mostly used in the preparation of most of the soaps we use is
(a) Sodium chloride
(b) Potassium hydroxide
(c) Sodium hydroxide
(a) Potassium chloride
What is a soap?
The soap molecule has a
What are the similarities between Soap and synthetic detergent.
