Class 12

18. Surface chemistry question bank (Chemistry)

Practice 1,573 free Class 12 Chemistry - 18. Surface chemistry questions with answers and step-by-step solutions.

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.

The adsorption of hydrogen by metals is called

(A)
Dehydrogenation
(B)
Hydrogenation
(C)
Occlusion
(D)
Adsorption
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