Define the following terms giving one suitable example for each: (i) Electrophoresis

Monjur Alahi

Define the following terms giving one suitable example for each:
(i) Electrophoresis
(ii) Micelles
(iii) Peptization


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Salim Ahmed Kawsar

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(i) The movement of colloidal particles towards oppositely charged electrodes in an electric field is called electrophoresis.

 (ii) There are some substances such as soap which at low concentration behave as normal electrolytes, but at higher concentration exhibit colloidal behaviour due to the formation of aggregates. The aggregated particles thus formed are known as micelles or associated colloids. 

(iii) The process of converting a procipitate into colloidal solution by shaking it with dispersion medium in the presence of small amount of electrolyte is called peptization.

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