Consider the following statements for micelles, which is/are correct?

At critical micelle concentration, several properties of solution of surfactants such as molar conductivity , surface tension and osmotic pressure change

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Micelles from ionic surfactants can be formed only above a certain temperature called the Kraft temperature

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Micelle formation is exothermic

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Micelles are associated colloids

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Solution

The correct options are
A Micelles from ionic surfactants can be formed only above a certain temperature called the Kraft temperature
C At critical micelle concentration, several properties of solution of surfactants such as molar conductivity , surface tension and osmotic pressure change
D Micelles are associated colloids
A, B and D are correct.
Kraft Temperature:- The kraft temperature is the minimum temperature at which surfactant forms micelles. Below kraft temperature, there is no value for the CMC (Critical micelle concentration).
CMC:- Concentration of surfactants above which micelle form and all the additional surfactants added to the system will go to micelle.

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Similar questions

Q. Surfactant molecules can cluster together as micelles, which are colliod sized cluster of molecules. Micelles form only above critical micelle concentration (CMC) and above certain temperature called Kraft temperature.

Δ H

of micelle formation can be positive or negative. Which of the following is NOT TRUE about micelle formation?

Δ H

of micelle formation can be positive or negative. Which of the following is NOT TRUE about micelle formation?

Q. Statement-1: Micelles are formed by surfactant molecules above the critical micellar concentration

(C M C)

.
Statement-2: The conductivity of a solution having surfactant molecules decreases sharply at the CMC.

Q. Assertion :Surfactant molecules form micelles above the critical micelle concentration (CMC). Reason: The conductance of solution of surfactant molecules decreases sharply at the (CMC).

Q. Assertion :Micelles are formed by surfactant molecules above the critical micellar concentration (CMC). Reason: The conductivity of solution having surfactant molecules decreases sharply at the CMC.

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