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When a sulphur sol is evaporated, solid ...

When a sulphur sol is evaporated, solid sulphur is left. On mixing with water no colloidal sol is formed. The sulphur sol is :

A

lyophilic

B

reversible

C

hydrophobic

D

hydrophilic

Text Solution

Verified by Experts

The correct Answer is:
C
Hydrophobic sols are irreversible in nature. They have no affinity between the dispersed phase and the dispersion medium `(H_(2)O)`. Further once precipitated, they do not form the collodal sol by simple addition of water.
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