Grade 12th passPhysical Chemistry
What is the difference between lyophobic sol and lyophilic sol?
What is the difference between lyophobic sol and lyophilic sol?
1 Answer
Pawan Prajapati
Answer:
Lyophobic sols: Substances like metals, their sulphides, etc., when simply mixed with the dispersion medium do not form the colloidal sol. Their colloidal sols can only be prepared by specific methods. They are not much hydrated and are irreversible in nature. They are also called extrinsic colloids.
Example : AS2S3 sol.
Lyophilic sols: Liquid loving colloids in which there is affinity between disperse phase and dispersion medium.
Example : Starch sol, Gum sol, Gelatin sol
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