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प्रश्न
What are protective colloids and how do they work?
लघु उत्तर
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उत्तर
Protective colloids are lyophilic colloids that, when added to a lyophobic sol, prevent its coagulation caused by electrolytes. They work by adsorbing onto the surface of lyophobic colloidal particles and forming a hydrated protective layer. This layer prevents particles from coming close enough to aggregate, thereby maintaining the stability of the colloidal system.
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