Brownian Motion
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Q. Colloidal particles dispersed in a liquid medium undergo a random, zigzag motion called the Brownian movement. The reason for this phenomenon is:
- Surface tension
- Extensive and uniform solvation
- Unbalanced forces caused by the bombardment of atoms of dispersion medium that surround the dispersed phase particles
- None of the above
Q. Which of the following does not affect the Brownian movement:
- Nature of colloid
- Size of the particles
- Viscosity of the solution
- None of the above
Q. The zig-zag motion (erratic motion) of particles in colloid was observed by :
- Tyndall
- Charles Brown
- Robert brown
- Thomas Graham