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(A) To disperse an organic solvent like benzene in water,a surfactant (emulsifying agent) is required. $A$ surfactant molecule has a dual nature: a lo

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(A) To disperse an organic solvent like benzene in water,a surfactant (emulsifying agent) is required. $A$ surfactant molecule has a dual nature: a long hydrophobic hydrocarbon tail that interacts with the organic phase (benzene) and a hydrophilic polar head that interacts with the aqueous phase (water). Option $A$ represents a soap molecule (sodium salt of a long-chain fatty acid),which acts as an effective surfactant for this purpose.

Which of the following is most suitable to disperse benzene in water?

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