Based on the following characteristics distinguish in tabular form the behaviour of true solution, suspension and colloidal solution. (a) appearance. (b) visibility. (c) filterability. (d) Tyndall effect. (e) particle size.
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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
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
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