Question 15:
Explain the mechanism of the cleaning action of soaps.
Answer:
Cleansing action of soaps:
The dirt 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 dirt and remove it from the cloth. Then,
the molecules of soap arrange themselves in micelle formation and trap the dirt at
the centre of the cluster. These micelles remain suspended in the water. Hence, the
dust particles are easily rinsed away by water.
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