Statement A: Micelles are formed by surfactant molecules above the critical micellar concentration (CMC).Statement B: The conductivity of a solution having sufficient molecules decreases sharply at the CMC.
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a
Both Statement A and Statement B are true
b
Both Statement A and Statement B are false
c
Statement A is true but Statement B is false.
d
Statement A is false but Statement B is true.
answer is A.
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Detailed Solution
The formation micelles takes place above CMC. Hence statement 1 is true. Each micelle contains at least 100 molecules. Hence, conductivity of the solution decreases sharply at the CMC.