Give an example of a solid sol in which the dispersed phase is in a gaseous state.

The protective power of a lyophilic colloidal sol is expressed in terms of

Which of the following is an associated colloid?

Molar conductivity $\left(\Lambda_m\right)$ of an aqueous solution of sodium stearate,which behaves as a strong electrolyte,is recorded at varying concentrations $(c)$ of sodium stearate. Which one of the following plots provides the correct representation of micelle formation in the solution? (Critical micelle concentration $(CMC)$ is marked with an arrow in the figures.)

In lyophilic sols,the attraction of sol particles towards the medium is due to:

Brownian motion arises due to ....