REVIEW EXERCISES

Physical adsorption is considerable at :

Gold number of protective colloids $\mathrm{A}, \mathrm{B}, \mathrm{C}$ and $\mathrm{D}$  are $0.5, 0.01, 0.10$ and $0.005$ respectively. The correct order of their protective powers is

This has minimum gold number:

An adsorption isotherm is a plot of

The gold sol is generally prepared by the following process:

In which of the following, the dispersed phase is a liquid?

The formation of micelles takes place only above

Adsorption is accompanied by