How are sol solution and suspension …

Solution Sol SuspensionA solution is a homogeneous mixture of two or more substances. A sol is a heterogeneous mixture. Suspension is a heterogeneous mixture.
The particles of a solution are smaller than 1 nm (10-9 metre) in diameter. So, they cannot be seen by naked eyes. The size of particles of a sol is too small to be individually seen by naked eyes. It is between 1 nm and 100 nm in diameter The particles of a suspension can be seen by the naked eye. Their size is larger than 100 nm in diameter.
Due to small particle size, they do not scatter a beam of light passing through them. Thus, the path of light is not visible in a solution. Sols are big enough to scatter a beam of light passing through them and make its path visible. The particles of a suspension scatter a beam of light passing through it and make its path visible.
The solute particles do not settle down when left undisturbed, i.e., a solution is stable. They do not settle down when left undisturbed, i.e., a sol is quite stable. The solute particles settle down when a suspension is left undisturbed, i.e., a suspension is unstable.
The solute particles cannot be separated from the mixture by the process of filtration. The solute particles cannot be separated from the mixture by the process of filtration. They can be separated from the mixture by the process of filtration.