NEET Chemistry Surface Chemistry Questions Solved


The Brownian movement of colloidal particles is because of –

(A) Convection currents in the fluid

(B) Unequal bombardments by the molecules of the dispersion medium on colloidal particles

(C) Setting of dispersed phase under gravity

(D) Thermal gradient in the medium

(B). Unequal bombardments of solvent particles on colloidal particles cause zig-zag motion. 

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