Question

Complete the table for characteristics of suspension, colloidal solution and solution.

Property	Suspension	Colloidal solution	Solution
(a) Particle size	$>100\mathrm{nm}$	……………..	……………..
(b) Nature	……………….	Heterogeneous	………………
(c) Tyndall effect	……………….	……………..	does not show
(d) Separation by ordinary filter paper	………………	Not possible	………………
(e) Brownian movement	May show	……………….	………………

Answer 1

1. Solution: A solution is a homogenous mixture of two or more substances. Example: sugar solution (sugar in water).
2. Colloidal solution: A colloidal solution in a solution in which the size of the solute particles is intermediate to that of true solution and suspension. Example: Shaving cream.
3. Suspension: A suspension is a heterogeneous mixture in which the particles of solute remain suspended in the solution and get settled down to the bottom of the container when left untouched for some time. Example: Blood
4. Tyndall effect: The phenomenon of scattering of light when light is passed through a colloidal solution is termed as Tyndall effect.
5. Brownian movement: The zig-zag movement of particles in a colloid is known as the Brownian movement.

The complete table showing the characteristics is shown below-

Property	Suspension	Colloidal solution	Solution
(a) Particle size	$>100\mathrm{nm}$	1 to 100 nm	< 1 nm
(b) Nature	Heterogeneous	Heterogeneous	Homogenous
(c) Tyndall effect	shows	shows	does not show
(d) Separation by ordinary filter paper	possible	Not possible	not possible
(e) Brownian movement	May show	shows	may or may not show