Question

What are the characteristics of a colloidal .

Answer 1

They show tyndall effect.
Has disperse phase and disperse medieum.
Heterogeneous.

Answer 2

» Colloidal solutions appear to be Homogeneous but are actually Heterogeneous in nature.

» Colloidal solutions are a two phase system, These are dispersed phase and dispersion medium. That's why the colloidal solutions are of Heterogeneous nature.

» Colloidal particles pass through ordinary filter papers.

» Colloidal particles carry charge,

» particles in a colloidal solution follow zig - zag path, ( Brownian movement ).

» Colloidal solution scatters the beam of light passing through it.

» colloidals solutions in which only liquids participate are known as emulsions.
few examples of emulsions are :- milk, cold- vanishing creams, moisturising creams, paints etc.