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JEE Main202127 Aug 2021Evening ShiftChemistrySurface ChemistryActual

Lyophilic sols are more stable than lyophobic sols because:

Options

  1. Athe colloidal particles have no charge.
  2. Bthe colloidal particles have positive charge.
  3. Cthe colloidal particles are solvated.
  4. Dthere is a strong electrostatic repulsion between the negatively charged colloidal particles.

Correct answer

C. the colloidal particles are solvated.

Step-by-step solution

Lyophilic sols are quite stable and cannot be easily coagulated. Lyophobic sols need stabilising agents for their preservation. Property Lyophilic colloids Lyophobic colloids Stability These are very stable These are unstable and require traces of stabilizers

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