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BITSAT Chemistry Surface Chemistry 2024 BITSAT 2024 (Memory Based Paper 2)

BITSAT Chemistry Question (2024) — Solution

Question

The charge on colloidal particies is due to

Options

  1. A. presence of electrolyte
  2. B. very small size of particles
  3. C. adsorption of ions from the solution
  4. D. can't be determined

Answer

C. adsorption of ions from the solution

Step-by-step solution

The colloidal particles have a tendency to preferentially adsorb a particular type of ions form the solution. This preferential adsorption of a particular type of ions imparts a particular type of charge to colloidal narticles.

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