Question

what is Sol?
It is a colloid.

Answer 1

hope it helps u.
A sol is a colloidal solution suspension of very small solid particles in a continuous liquid medium.
examples:Examples include blood, pigmented ink, cell fluids and paint. Artificial sols may be prepared by dispersion or condensation.

Answer 2

Solution is a mixture of solute + solvent.
It is collide because its take place between the two or more molecules combined together which can either be formed a homogeneous solution or heterogeneous solution.