Mechanism of cleansing action of soap class 10?
Question: Mechanism of cleansing action of soap class 10?
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# Mechanism of Cleansing Action of Soap
Soap is a substance that can remove dirt and grease from various surfaces, such as clothes, skin, dishes, etc. Soap molecules have a unique structure that makes them effective cleansers. In this blog post, we will explain how soap works and why it is useful for cleaning.
## Structure of Soap Molecules
Soap molecules are made of two parts: a hydrophilic (water-loving) head and a hydrophobic (water-hating) tail. The head is usually a carboxylate ion (COO^-), which can dissolve in water. The tail is usually a long hydrocarbon chain (C_nH_(2n+1)), which can dissolve in oil or grease.
## Cleansing Action of Soap
When soap is dissolved in water, the hydrophobic tails tend to avoid water and stick out from the surface of the water. This creates a layer of soap molecules on the water surface, forming bubbles or foam.
When soap comes in contact with a dirty surface, such as a cloth with an oily stain, the hydrophobic tails of the soap molecules attach themselves to the oil or grease molecules, forming a spherical structure called a micelle. The hydrophilic heads of the soap molecules remain outside the micelle, facing the water.
The micelle acts as an emulsifier, which means it can disperse the oil or grease into tiny droplets in water. These droplets are then surrounded by more soap molecules, forming more micelles. The micelles prevent the oil or grease from clumping together again and keep them suspended in water.
When the dirty surface is rinsed with water, the micelles are washed away along with the dirt, leaving the surface clean.
## References
- Explain the mechanism of the cleaning action of soaps. - BYJU'S
- Explain the mechanism of cleansing action of soaps. - Toppr
- Explain the mechanism of the cleaning action of soaps. - TutorialsPoint
- Cleansing Action of Soap and Detergents - Unacademy
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