(i) What is the role of activated charcoal in gas mask ?
(ii) A colloidal sol is prepared by the given method in figure. What is the charge on hydrated ferric oxide colloidal particles formed in the test tube ? How is the sol represented?
(iii) How does chemisorption vary with temperature?

(i) What is the role of activated charcoal in gas mask ? (ii) How does chemisorption vary with temperature?

A colloidal solution of AgI is prepared by two different methods as shown below: What is the charge of colloidal particles in the two test tubes (A) and (B) ?

(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)

(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)

A colloidal solution of Agl is prepared by two different methods as shown in the figure below: What is the charge of Agl colloidal particles in the two test tubes (A) and (B) ? b. Given reasons for the origin of charge.

A colloidal solution of Agl is prepared by two different methods as shown in the figure below: What is the charge of Agl colloidal particles in the two test tubes (A) and (B) ? b. Given reasons for the origin of charge.

A colloidal solution of ferric oxide is prepared by two different methods as shown below. a. What is the charge on colloidal particles in the two test tubes (A) and (B) ? b. Give reasons for the origin of charge.