Among the following number of correct statements are :
(i) Stability of lyophilic colloids is mainly due to the strong interaction between dispersed particle and dispersion medium.
(ii) Entropy change for adsorption of gases over solid is positive.
(iii) Gelatin has considerably low value of gold number and is effective protective colloid.
(iv) Zeta potential is also responsible for stability of lyophobic colloid solution.
(v) Surface tension of lyophilic colloidal solution is lesser than that of dispersion medium.
