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Questions
What are associated colloids?
What do you understand by associated colloids? Explain with an example.
What are associated colloids? Explain with examples.
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Solution
Associated colloids are special types of colloids formed by surface-active substances such as soaps and detergents. These substances behave as strong electrolytes at low concentrations but form micelles and exhibit colloidal properties at higher concentrations. Micelles are aggregates of molecules in which the hydrophobic (water-repelling) tails point inward and the hydrophilic (water-attracting) heads point outward, thus stabilizing the colloidal system.
Example: Soap solutions in water form associated colloids when the concentration exceeds a certain threshold known as the critical micelle concentration.
