A dispersion of AgCl in water is hydrophobic.
In a true solution, the solute particles mix uniformly with the solvent molecules to form a single phase. A colloidal solution, on the other hand, is a heterogeneous system in which very fine particles of one material scatter in a dispersion medium.
- The word hydrophilic and hydrophobic are used when the dispersion medium is water.
- Egg albumin, starch and gum are lyophilic sols.
- Freshly prepared ferric hydroxide, aluminium hydroxide and arsenic sulphide sols are examples of lyophobic sols.
- AgCl being a covalent molecule is insoluble in water and hence hydrophobic.