The Critical Micelle Concentration (CMC) is:
(a) the concentration at which micellization starts
(b) the concentration at which true solution is formed
(c) the concentration at which one molar electrolyte is present per 1000 g of solution
(d) the concentration at which solute and solution from equilibrium
(a) It is the minimum concentration at which surfactant molecules undergo aggregation.
An emulsifier is a substance which:
(a)Homogenesis the emulsion
(b)stabliizes the emulsion
(c)retards the dispersion of liquid in liquid
(d)coagulates the emulsion
(b) Emulsifiers or emulsifying agent or emulgents are third component used to stablize a liquid-liquid sol,i.e., emulsion.