Chemistry - Surface Chemistry Question with Solution | TestHub

A system is said to be in colloidal state if particles of one or more components have the same size range $10^{-6}\mathrm{m}$ to $10^{-9}\mathrm{m}$. In other words, the colloidal solution is a heterogenous dispersion of solute particles size ranging from $10^{-6}\mathrm{m}$ into the solvent. Particles are visible only with an ultra microscope.