Question

Below critical micelle concentration (CMC) ________.

• A. salt behaves like normal electrolyte.
• B. substance like grease, fat dissolve by emulsification.
• C. the viscosity of solution is very high.
• D. surfactant molecules undergo association to form cluster.

Answer 1

The correct option is A salt behaves like normal electrolyte.

There are some substances which at low concentrations behave as normal strong electrolytes, but at higher concentrations exhibit colloidal behavior due to the formation of aggregates called micelles.

Thus, below CMC salt behaves like normal electrolyte.