4. Which of the following is not a lyophobic colloidal example? a) Gold solution b) Sulphur solution c) NaCl solution d) Blood
The correct option is C NaCl solution Gold solution, sulphur solution and blood are colloids in which the dispersed phase has very low affinity for the dispersion medium and once the dispersed phase and dispersion medium are separated we cannot get the solution directly by remixing the two phases. Therefore they are categorized under lyophobic colloids.
