Class 12

18. Surface chemistry question bank (Chemistry)

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Q1.

Adsorption of gases on a solid surface is generally exothermic because

(A)
Enthalpy is positive
(B)
Entropy decreases
(C)
Entropy increases
(D)
Free energy increases
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Q2.

Which of the following can adsorb the largest volume of hydrogen gas?

(A)
Finely divided platinum
(B)
Finely divided nickel
(C)
Colloidal palladium
(D)
Colloidal platinum
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