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Define Lyophobic and Lyophilic sol with a suitable example of each. Why is coagulation of Lyophilic sol difficult as compared to Lyophobic sol ?

 

 

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Lyophobic sol is liquid or water repelling sol . Example: Fe(OH)3 sol

Lyophilic sol is liquid or water attracting. Example: starch sol

Coagulation of Lyophilic sol difficult as compared to Lyophobic sol because of the charge and solvation of the colloidal particles.

 

 

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Safeer PP

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