KCET · Chemistry · Surface Chemistry
When a sulphur sol is evaporated sulphur is obtained. On mixing with water sulphur sol is not formed. The sol is
- A lyophilic
- B reversible
- C hydrophobic
- D hydrophilic
Answer & Solution
Correct Answer
(C) hydrophobic
Step-by-step Solution
Detailed explanation
Hydrophobic sol are irreversible in nature. They have no affinity between the dispersed phase and the dispersion medium \(\left(\mathrm{H}_{2} \mathrm{O}\right)\). Further once precipitated, they do not form the colloidal sol by simple addition of water.
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