Gujarat BoardEnglish MediumSTD 12 ScienceChemistrySurface Chemistry3 Marks
Question
Define each of the following terms:
Micelles.
Peptization.
Desorption.
✓
Answer
Micelles: Micelles are associated colloids which show colloidal behaviour at high concentration and act as strong electrolytes at low concentration.
Peptization: The process of converting a precipitate into colloidal sol by shaking itwith dispersion mediumin the presence of a small amount of electrolyte is called Peptization.
Desorption: The process of removing an adsorbed substance froma surface onwhich it is adsorbed is called desorption.
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