MHT CET Chemistry Question (2026) — Solution

Step-by-step solution

The movement of colloidal particles under the influence of an applied electric potential is called electrophoresis. When the movement of colloidal particles is prevented by some suitable means (like a semipermeable membrane), it is observed that the dispersion medium begins to move in an electric field. This phenomenon is termed electroosmosis. Since the question specifies the movement of colloidal particles without using a semipermeable membrane, the correct term is electrophoresis. Answer: Electrophoresis