EVERYDAY SCIENCE

Detailed explanation-1: -A colloidal solution shows Tyndall effect (scattering of light) while a true solution does not. This is not related to the fact that its particles move slowly than in a true solution.

Detailed explanation-2: -When light is shined through a true solution, the light passes cleanly through the solution, however when light is passed through a colloidal solution, the substance in the dispersed phases scatters the light in all directions, making it readily seen.

Detailed explanation-3: -When light is passed through a colloidal solution it scatters in different directions. This is due to the Tyndall effect. The Tyndall effect is the phenomenon of light scattering by particles in a colloidal solution.

Detailed explanation-4: -This is because the size of solute particles in true solutions is so small that it cannot scatter a beam of light. Tyndall effect is the phenomenon of scattering of a beam of light because of the large particles suspended in the medium.

Detailed explanation-5: -The size of colloidal particles is large enough to scatter light while particles of a true solution are too small to scatter light.