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Which of the following plot correctly re...

Which of the following plot correctly represents the variation of a concentration of a surfactant (e.g., sodium dodecyl sulphate) versus molar conductivity with regard to behavior art CMC

A

B

C

D

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The correct Answer is:
A
The molar conductivity veries as shown in plot (a). With increase in concentration below CMC, molar conductivity keeps on decreasing. After CMC, the decrease becomes steeper and a discontiunity is observed at CMC.
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