Write one difference in each of the following :
(a) Multimolecular colloid and Associated colloid
(b) Coagulation and Peptization
(c) Homogeneous catalysis and Heterogeneous catalysis
(i) Multimolecular colloids an those in which large number of small atoms/molecules aggregate together to form colloidal particles. whereas in associated colloids . sustances which act as electrocytes at low concentration but at high concentration associate with each other to form particles having size in colloidal range.
(ii)Coagulation is the process of setting of colloidal particles whereas peptization is the process of converting a freshly prepared precipitate into colloidal form by addition of a small amount of electrocyte.
(iii) Homogeneous catalysis is said to occur when reactants and catalyst are in the same phase whereas in hetrogeneous catalysis, reactants and catalysts are in different phases.