Question

Colloidal solution what is? Do they have any preventions

Answer 1

Answer:

colloidal solutions are the soln in which the particle size is more than 10 raise to power -6

and we can observe them under microscope

Answer 2

Answer:

Colloidal solutions, or colloidal suspensions, are nothing but a mixture in which the substances are regularly suspended in a fluid. ... Colloidal systems can occur in any of the three key states of matter gas, liquid or solid. However, a colloidal solution usually refers to a liquid concoction.

They can be prevented from coagulation by the previous addition of some stable lyophilic colloids like gelatin, albumin, etc. This is because when a lyophilic sol is added to the lyophobic sol, the lyophilic particles form a layer around the lyophobic particles and this protect them from electrolytes.

Hope you understand the answer well dear.....