) distinguish between lyophobic and lyophilic colloids.
Answers
Main Difference – Lyophilic vs Lyophobic Colloids
A colloid is a type of homogeneous mixture where the dispersed particles do not settle out. Colloids show some unique properties such as Tyndall effect, Brownian motion, electrophoresis, etc. When colloids are present in a solution, it is known as a colloidal solution. These colloidal solutions can be categorized into two groups as lyophilic sols and lyophobic sols depending on the interaction between colloids and the liquid (solvent). Particles in lyophilic sols are lyophilic colloids, and particles in lyophobic sols are lyophobic colloids. The main difference between lyophilic and lyophobic colloids is that lyophilic colloids are thermodynamically stable whereas lyophobic colloids are unstable.
Answer:
(1) Lyophilic colloids : The sols in which there is a strong affinity between the dispersed phase and the dispersion medium are called lyophilic colloids.
(2) Lyophobic colloids : The sols in which there is little affinity between the dispersed phase and the dispersion medium are called lyophobic colloids.