Explain the mechanism of cleaning action of saops
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- Soap molecules have different properties at their two ends.
- Its one end is hydrophilic that is soluble in water and other is hydrophobic that is soluble in fats or oils.
- At the surface of water, the hydrophobic and or tail of the soap will be in soluble in water and the soap will align along the surface of the water with the ionic and in water and the hydrocarbon tail protruding out of water.
- Inside water, these molecules show a unique orientation that keeps hydrocarbon portion out of the water.
- This is done by forming clusters of molecule in which the hydrophobic tails are in the interior of the cluster and on the surface of cluster, ionic are present.
- This formation of cluster of molecules is called micelle .
- To wash away the loose and dirt particles in the form of micelles from the surface of the cloth, it is either scrubbed mechanically or beaten or agitated in washing machine.
- In the form of a micelle, soap is able to clean, since the early dirt is being collected in the centre of the micelle.
- Micelles stairs colloids in the solution and does not come together to precipitate due to Ion Ion repulsion.
- Hence, the dirt suspended in the micelles are also rinse away.
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