Question
Explain the following terms giving a suitable example for each:
- Aerosol.
- Emulsion.
- Micelle.
✓
Answer
- Aerosol: A colloidal solution having a gas as the dispersion medium and a solid/liquid as the dispersed phase is called an aerosol. For example: Fog, Smoke, Dust.
- Emulsion: The colloidal solution in which both the dispersed phase and dispersion medium are liquids is called an emulsion. For example: Milk, Cold Cream.
- Micelles: There are some substances which at low concentrations behave as normal strong electrolytes, but at higher concentrations exhibit colloidal behaviour due to the formation of aggregates. The aggregated particles thus formed are called micelles. eg. Soap, Detergents.
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