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With respect to a sol (a colloid) what i...

With respect to a sol (a colloid) what is
  (i) dialysis
(ii) electrophoresis
(iii) coagulation ?

Text Solution

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(i) The process of removal of particles of true solution (crystalloids) from a sol (colloid) using a semipermeable membrane/animal membrane/ parchment paper.
OR
The process of removal of particles of true solution by their diffusion through semi permeable membrane.
(ii) Movement of colloidal particles towards the oppositely charged electrode under the influence of an electric field
OR
Movement of colloidal particles towards cathode or anode in an electric field.
  (iii) The phenomenon of precipitation of a colloidal solution (sol).
OR
The phenomenon by which colloidal particles aggregate (grow bigger) to form a precipitate.
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