Identify the correct molecular picture showing what happens at the critical micellar concentration (CMC) of an aqueous solution of a surfactant ( polar head , non - polar tail , water ) .

Assertion (A): Micelles are formed by surfactant molecules above the critical micellization concentration (CMC) . Reason(R): The conductivity of a solution having surfactant molecules decreases sharply at the CMC . (a)If both (A) and (R) are correct, and (R) is the correct explanation of (A). (b)If both (A) and (R) are correct, but (R) is not the correct explanation of (A). (c)If (A) is incorrect, but (R) is correct. (d)If both (A) and (R) are incorrect.

There are certain substances which behave as normal, strong electrolyte at low concentration but at higher concentration they behave as colloidal solutions due to the formation of aggeregated particles. Such colloidals called associated colloids and the aggeregated particles are called micelles. The formation of micelles take place above certain concentration called critical micelization concentration called critical micellization concentration (CMC) and a characteristic temperature. Above CMC, the surfactant molecules undergo (more than one correct)

There are certain substances which behave as normal, strong electrolyte at low concentration but at higher concentration they behave as colloidal solutions due to the formation of aggeregated particles. Such colloidals called associated colloids and the aggeregated particles are called micelles. The formation of micelles take place above certain concentration called critical micelization concentration called critical micellization concentration (CMC) and a characteristic temperature. Above CMC, the surfactant molecules undergo (more than one correct)