Saleha Pervez and Vandana Solutions for Chapter: Surface Chemistry, Exercise 3: Chapter Practice

Draw the flow chart for all the methods of preparation of colloids.

How does the size of particles of adsorbent, pressure of gas and prevailing temperature influence the extent of adsorption of a gas on a solid?

Explain the mechanism of the term: Adsorption

Explain the mechanism of the term: Enzyme catalysis.

Differentiate among homogeneous solution, heterogeneous colloid and suspension. Give a suitable example of each. How is crystalloid different from a true solution?

Compare the coagulation power of ${\mathrm{AlCl}}_3$ with that of $\mathrm{NaCl}$. Given that their coagulating values are$0.093$ and$52$, respectively.

What is the difference between a colloidal sol and emulsion? Give examples also.

Write any two methods for preparation of colloid and explain the various methods used in the purification of colloid.