What are (i) Brownian movement and (ii) Tyndall effect ? Draw diagrams – InterviewSolution

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1.	What are (i) Brownian movement and (ii) Tyndall effect ? Draw diagrams to illustrate them.
Answer» SOLUTION :(i) Brownian movement: It is zig-zag motion in colloidal PARTICLES. It is due to collision between particles of dispersed PHASE among themselves as well as with particles of dispersion medium. (ii) Tyndall effect : When beam of light is passed through colloidal particles, its path BECOMES clearly visible. It is CALLED Tyndall effect. It is due to scattering of light of by colloidal particles.

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