Define the following terms with an example in each: (i) Lyophobic col

1.	Define the following terms with an example in each: (i) Lyophobic colloids (ii) Homogeneous catalysis (iii) O/W emulsion
Answer» (i) The particles of the dispersed phase have no affinity for the dispersion medium /solvent repelling (hating) colloidal sols. Example, metal and their sulphides. (ii) The reactant and the catalyst are in the same phase. CH₃COOCH₃(I) + H₂O(I) + HCl(I) → CH₃COOH(aq) + CH₃OH(aq) (iii) Oil is dispersed in water/oil is dispersed phase and water is dispersion medium. Example- milk

Define the following terms with an example in each: (i) Lyophobic colloids (ii) Homogeneous catalysis (iii) O/W emulsion

Answer»

(i) The particles of the dispersed phase have no affinity for the dispersion medium /solvent repelling (hating) colloidal sols.

Example, metal and their sulphides.

(ii) The reactant and the catalyst are in the same phase.

CH₃COOCH₃(I) + H₂O(I) + HCl(I) → CH₃COOH(aq) + CH₃OH(aq)

(iii) Oil is dispersed in water/oil is dispersed phase and water is dispersion medium.

Example- milk