Match Column I with Column II

i-b; ii-c; iii-d; iv-a

(i) By passing vapours of Sulphur through cold water sulphur sol can be prepared which is a molecular colloid.

(ii) When soap is mixed with water above critical micelle concentration forms associated with colloid.

(iii) White of egg whipped with water forms a macromolecular colloid.

(iv) Soap mixed with water below critical micelle concentration behave as the normal electrolyte.