Match List I with List II List I List II (A). Brownian Motion (I). Removal of impurities from the colloidal sols using a semipermeable membrane. (B). Tyndall Effect (II). Movement of colloidal particles under the influence of an electric field. (C). Electrophoresis (III). Random movement of colloidal particles due to kinetic energy. (D). Dialysis (IV). Scattering of light by colloidal particles Choose the correct answer from the options given below:
D. (A) - (III), (B) - (IV), (C) - (II), (D) - (I)
Brownian motion is the continuous random zig-zag movement of colloidal particles due to unequal bombardment by the molecules of the dispersion medium. Thus, (A) (III). Tyndall effect is the scattering of light by colloidal particles, making the path of light visible. Thus, (B) (IV). Electrophoresis is the movement of colloidal particles towards oppositely charged electrodes under the influence of an applied electric field. Thus, (C) (II). Dialysis is the process of removing dissolved impurities from a colloidal sol using a semipermeable membrane. Thus, (D) (I). The correct matching is (A) - (III), (B) - (IV), (C) - (II), (D) - (I). Answer: (A) - (III), (B) - (IV), (C) - (II), (D) - (I)
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