JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Micelles have

(A)Same colligative property as that of a common colloidal solution
(B)Lower colligative property as that of a common colloidal solutionCorrect
(C)Higher colligative property as that of a common colloidal solution
(D)None of the above

Answer: (B)

Solution

Since many surfactant monomers (typically 50–100 or more) aggregate to form a single micelle, the effective number of kinetic particles per unit mass in solution is much smaller than if the same surfactant ions remained

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Question ID VK-144865