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Class XII Surface Chemistry 2

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Question 1

Gas masks containing activated charcoal to remove poisonous gases from atmosphere acts on principle of –

Question 2

There is desorption of physical adsorption when –

Question 3

For adsorption of gas on solid surface, the plots of log x/m vs log P is linear with a slope equal to–

Question 4

Catalysts are more effective in –

Question 5

On adding few drops of dil HCl to freshly precipitated ferric hydroxide, a red coloured colloidal solution is obtained. This phenomenon is known is–

Question 6

In the preparation of AgI sol, the excess of AgNO₃, is added to potassium iodide solution. The particles of the sol will acquire –

Question 7

Physical adsorption is accompanied by –

Question 8

Which gas is strongly adsorbed by charcoal –

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