Question

Which of the following colloids are solvent hating?

• A. lyophilic
• B. lyophobic
• C. hydrophilic
• D. none of these

Answer 1

The correct option is B lyophobic

Lyophobic colloids: In these colloidal solution there is no affinity between particles of the dispersed phase and the dispersion medium.
These sols are readily ​precipitated (or coagulated)​ on addition of small amounts of electrolytes, by heating or by shaking​. As a result, they are not stable​.

Once precipitated, they do ​not give back the colloidal sol​ by simple addition of ​the dispersion medium. Hence, they are known ​as irreversible sols.​