based on the following characteristics distinguish in tabular form from the behaviour of true solution, suspension, colloidal solution
a appearance
b visibility
c filterability
d tyndall effect
e particle size
The differences between colloidal solution, true solution and suspension are:
Colloidal solution | True Solution | Suspension |
They are heterogeneous in nature. They are translucent in appearance. | They are homogeneous in nature. They are transparent in appearance. | They are heterogeneous in nature. They are opaque in appearance. |
The particles of a colloid are too small to be individually seen by naked eyes. | The particles of a true solution cannot be distinguished from the solvent particles. | The particles of a suspension can be seen by the naked eye. |
The size of colloidal particles lies between 1nm to 1000nm. | The size of solute particles is less than 1nm. | The size of suspended particles is more than 1000nm. |
They scatter a beam of light and hence show Tyndall effect. | They do not scatter a beam of light and hence do not show Tyndall effect. | They do not scatter a beam of light and hence do not show Tyndall effect. |
They do not settle down when left undisturbed. They are quite stable | Particles of solution do not settle down at the bottom when left undisturbed. They are very stable | The solute particles settle down when a suspension is left undisturbed. They are unstable |
They cannot be filtered from ordinary filter paper. | They cannot be filtered from ordinary filter paper. | They can be filtered from ordinary filter paper. |
Examples of colloidal solutions are: milk, blood smoke etc. | Examples of true solution are: salt in water, sugar in water. | Examples of suspension are: sand in water, dusty air |