What are the physical propertie of sol
Sols resemble liquids in their main physical properties - that is, they flow and they do not show rigidity of form. However, when a sol assumes a rigid form, it is referred to as a gel. There is no distinct line of separation between a sol and gel; infact some sols become gel by increasing the concentration of dispersed solids or micelles. A typical sol is a fluid whereas a typical gel has a certain amount of rigidity