Which of the following processes does $NOT$ result in coagulation?

Colloidal solution commonly used in the treatment of skin disease is

$A$ micelle formed during the cleansing action by soap is

Which of the following information is incorrect?

The surface tension of a soap solution is $30 \times 10^{-3} \, N/m$. The work done to increase the surface area of a soap film from $5 \, cm \times 5 \, cm$ to $10 \, cm \times 10 \, cm$ is:

Small liquid droplets dispersed in another liquid is called