Sol

Solution

Suspension

The size of solute particles is between 1 nm to 100 nm. The particles cannot be seen with naked eyes.

The size of solute particles is less than 1 nm (10^-9 m) hence, they cannot be seen with naked eyes.

The size of solute particles is more than 100 nm. The particles of suspension can be seen with naked eyes.

These are quite stable. The particles do not settle down when left undisturbed.

The solute particles do not settle down when left undisturbed, that is, a solution is stable.

The solute particles settle down when a suspension is left undisturbed therefore, a suspension is unstable.

Particles are big enough to scatter a beam of light passing through it and make its path visible.

Because of very small particle size, they do not scatter a beam of light passing through the solution. So, the path of light is not visible.

The particles of a suspension scatter a beam of light passing through it and make its path visible.

Solute particles are able to pass through the filter paper and cannot be separated through filtration.

The solute particles pass through the filter paper and cannot be separated from the mixture by the process of filtration.

Solute particles do not pass through filter paper. They can be separated from the mixture by the process of filtration.