Question

Distinguish between the behaviour of true solution, suspension and colloidal solution in tabular form.

CBSE Class IX Science LA (5 Marks)

Answer 1

S.No.
True Solution
Suspension
Colloidal Solution
1.
A true solution is a homogeneous mixture of solute and solvent.
It is a heterogeneous mixture.
A colloidal solution appears to be homogeneous, but actually it is a heterogeneous mixture of solute and solvent.
2.
It is transparent.
It is opaque.
It is translucent.

3.
The solute particles are very small i.e., less than 1 nm.
The solute particles are quite large i.e., more than 1000 nm.
The solute particles are between 1-1000 nm.
4.
The particles are not visible even with a powerful microscope.
The particles are visible even with naked eye.
The particles are visible with the help of microscope.
5.
The entire solution passes through filter paper as well as semi-permeable membrane.
The particles cannot pass through either a filter paper or through a semi-permeable membrane.
The particles can pass through ordinary filter paper, but not through a semi-permeable membrane.
6.
The solute particles do not show Tyndall effect.
They may or may not show Tyndall effect.
The particles show Tyndall effect.
7.
The particles do not settle due to gravity e.g. salt in water solution.
The particles may settle due to gravity e.g. chalk powder in water.
The particles do not settle due to gravity e.g. blood.