Question

Movement of dispersion medium under the influence of electric field is known as:

• A. electrodialysis
• B. electrophoresis
• C. electroosmosis
• D. cataphoresis

Answer 1

The correct option is C electroosmosis

• The movement of colloidal particles under an applied electric potential is called electrophoresis.
  

• During electrophoresis, if the movement of particles is prevented by some suitable means, it is observed that the dispersion medium begins to move in an electric field. This phenomenon is termed electroosmosis.