Advertisements
Advertisements
प्रश्न
Name three chemicals responsible for the surface activity of various detergents.
Advertisements
उत्तर
Chemicals responsible for the surface activity of various detergents are alkylbenzene sulphonate, alcohol ethoxy sulphates and alkyl sulphates.
संबंधित प्रश्न
Why do soaps not form lather in hard water?
In the neighbourhood of your school, hard water required for an experiment is not available. Select from the following group of salts available in your school, a group each member of which, if dissolved in distilled water, will make it hard:
(a) Sodium chloride, calcium chloride
(b) Potassium chloride, sodium chloride
(c) Sodium chloride, magnesium chloride
(d) Calcium chloride, magnesium chloride
Explain esterification reaction with the help of a chemical equation. Describe an activity to show esterification.
What is a detergent?
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
Give a scientific explanation.
Soap forms a precipitate in hard water.
Soap is a salt of ______ and sodium hydroxide.
Water, coconut oil, and _______ are necessary for soap preparation.
Analogy:
Used to join components: Adhesives:: Clean the body ______.
In the soap micelles
