(a) Write the dispersed phase and dispersion medium of milk.
(b) Write one similarity between physisorption and chemisorption.
(c) Write the chemical method by which $\mathrm{Fe}(\mathrm{OH}{)}_3$ sol is prepared from ${\mathrm{FeCl}}_3$ .

(a) In milk dispersion medium is water and dispersed phase is liquid fat.
(b) Physisorption and chemisorption both increases with increasing the surface area of the adsorbent.
(c) $\mathrm{Fe}(\mathrm{OH}{)}_3$ can be prepared from ${\mathrm{FeCl}}_3$ using hydrolysis method.
${\mathrm{FeCl}}_3+3{\mathrm{H}}_2\mathrm{O}\stackrel{\text{ Hydrolysis }}{⟶}\mathrm{Fe}\left(\mathrm{OH}{)}_3\right(\text{ sol })+3\mathrm{HCl}$