Question

Surface tension of lyophilic sols. is:

• A. lower than $H_{2}O$
• B. more than $H_{2}O$
• C. equal to $H_{2}O$
• D. none of these

Answer 1

The correct option is A lower than $H_{2}O$

The surface tension of lyophilic sols is lower than that of the surface tension of water as the lyophilic colloids have a great affinity towards the water solvent which decreases the surface tension.