Explain how the phenomenon of adsorption finds application in each of the following processes :
(i) Production of vacuum
(ii) Heterogeneous catalysis
(iii) Froth Floatation process

Explain how the phenomenon of pdsorption finds application in each of the following processes : (i) Production of vacuum (ii) Heterogeneous catalysis (iii) Froth Floatation process

(a) A colloidal sol is prepared by the given method in figure. What is the charge of AgI colloidal particles in the test tube ? How is the sol formed, represented? (b) Explain how the phenomenon of adsorption finds application in Heterogeneous catalysis. (c) Which of the following electroytes is the most effective for the coagulation of Fe(OH)_(3) sol which is a positively charged sol? NaCI, Na_(2)SO_(4), Na_(3)PO_(4)

In a heterogeneous catalysis which of the following processes takes place

(a) Write the principle involved in the vapour phase refining of metals. (b) Write the name of the metal refined by each of the following processes : (i) Mond process (ii) van Arkel method (c ) What is the role of depresent in froth floatation process ?

Describe the principle controlling each of the following processes: (i) Vapour phase refining of titanium metal. (ii) Froth floatation method of concetration of a sulphide ore

Write principle behind the following : (i) Vapour phase refining (ii) Chromatography (iii) Froth flatation process.