The stabilization of the dispersed phase in a lyophobic sol is due to :
Correct answer: D. The formation of an eletrical layer between the two phases
- A. The viscosity of the medium
- B. The surface tension of the medium
- C. Both (A) and (B)
- D. The formation of an eletrical layer between the two phases
Explanation
Due to preferential adsorption of similar ions, an electrical double layer formed on the surface of colloidal particles. e.g. arsnius sulphide solution.
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Solutions are described using molarity, molality, normality, mole fraction, percentage concentration and parts per million. Coverage also includes vapour-pressure lowering, boiling-point elevation, freezing-point depression and osmotic pressure, then distinguishes true solutions, colloids and suspensions by particle size, stability, light scattering and settling.
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