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प्रश्न
Explain the action of soap in removing an oily spot from a piece of cloth.
उत्तर
Cleansing action of soaps:
The oily spot present on clothes is organic in nature and insoluble in water. Therefore, it cannot be removed by only washing with water. When soap is dissolved in water, its hydrophobic ends attach themselves to the oily spot and remove it from the cloth. Then, the molecules of soap arrange themselves in the form of micelle and trap the dirt at the centre of the cluster. These micelles remain suspended in the water. Hence, the oily spots are easily rinsed away by water.
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संबंधित प्रश्न
Why do soaps not form lather in hard water?
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
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
Differentiate between:
Detergents and Soaps.
Soap is a salt of ______ and sodium hydroxide.
What are the differences between Soap and synthetic detergent?
Soaps are ester of which type of acids?
Analogy:
Used to join components: Adhesives:: Clean the body ______.
How does soap clean clothes?
The soap molecule has a
