JEE · NEET Previous Year Question

At the critical micelle concentration (CMC) the surfactant molecules

Topic: NEET PYQ

Answer: A. Full step-by-step solution below.

  1. Aassociate
  2. Bdissociate
  3. Cdecompose
  4. Dbecome completely soluble

Correct answer: A

Solution

(a) The soap conc. at which micelles (spherical colloid molecules) first appear is called as critical micellar concentration (CMC). At this condition the surfactant molecules associate with each other.

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