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Which statements regarding micellization and the CMC are true? I. A micellar sol

ID: 1032902 • Letter: W

Question

Which statements regarding micellization and the CMC are true?

             I.        A micellar solution is thermodynamically stable and forms spontaneously under appropriate conditions of temperature and concentration.

             II.       Mixed surfactant systems may have a lower CMC than any of the constituent surfactants.

           III.       For a homologous series, the CMC increases with increasing alkyl chain length

I only

III only

I and II

II and III

I, II, and III

a.

I only

b.

III only

c.

I and II

d.

II and III

e.

I, II, and III

Explanation / Answer

Answer: e.

I.        A micellar solution is thermodynamically stable and forms spontaneously under appropriate conditions of temperature and concentration.

             II.       Mixed surfactant systems may have a lower CMC than any of the constituent surfactants.

           III.       For a homologous series, the CMC increases with increasing alkyl chain length.

Above all the statements were correct regarding micellization and the CMC