Which of the following is a kinetic property of sols?

• The Tyndall effect, which is the scattering of a light beam by colloids, can be seen when sunlight passes through a dense forest's canopy. 
•  Brownian movement Brownian movement is the term used to describe the random (zig-zag) motion of microscopic colloidal particles floating in a liquid or gas media. 
• Electrophoresis is the movement of colloidal particles that are electrically charged in one direction while being influenced by an electric field. 
• Negatively charged colloidal particles migrate toward positive electrodes and vice versa. 

Measurement of the rate of movement of sol particles is done using electrophoresis. 

Hence the correct option is (B).