Question

In what way is a sol different from a gel?

Answer 1

Aspect	Sol	Gel
State	Sol is a colloidal system where solid particles are dispersed in a liquid.	Gel is a colloidal system where liquid is dispersed in a solid.
Physical nature	Sol behaves like a liquid.	Gel behaves like a solid or jelly-like semi-solid.
Dispersed phase	Solid particles constitute the dispersed phase.	Liquid particles form the dispersed phase.
Dispersion medium	The medium is liquid in which solids are dispersed.	The medium is solid which contains dispersed liquid.
Example	Gold sol, sulphur sol, ferric hydroxide sol.	Cheese, butter, jellies.