(a) Differentiate between the following:
(i) Adsorption and Absorption
(ii) Lyophobic Sol and Lyophilic Sol
(iii) Multimolecular Colloid and Macromolecular colloid.
OR
(b) (I) Define the following terms:
(i) Zeta Potential
(ii) Coagulation
(II) Why a negatively charged sol is obtained when AgNO3 solution is added to KI solution?