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# Cleansing action of soap occurs because:

Last updated date: 15th Mar 2023
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The cleansing action of soap is due to emulsification and micelle formation. Soaps are basically sodium and potassium salts of long-chain fatty acids, $R - COO - N{a^ + }$ . The end of the molecule to which the sodium it attached is polar in nature, while the alkyl - end is non-polar. Or, in other words we can say that, since the insoluble species may be introduced into the micelle nucleus, which is then solubilized in the bulk solvent due to the head groups' favourable interactions with solvent species, this happens.