SURFACE CHEMISTRY

Assessment
•
kuldeep sahu
•
Chemistry
•
12th Grade
•
740 plays
•
Hard
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20 questions
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1.
Multiple Choice
Which of the following process does not occur at the interface of phases?
crystallisation
heterogenous catalysis
homogeneous catalysis
corrosion
2.
Multiple Choice
At the equilibrium position in the process of adsorption ___________.
ΔH > 0
ΔH = TΔS
ΔH > TΔS
ΔH < TΔS
3.
Multiple Choice
Which of the following interface cannot be obtained?
liquid-liquid
solid-liquid
liquid-gas
gas-gas
4.
Multiple Choice
The term ‘sorption’ stands for ____________.
absorption
adsorption
both absorption and adsorption
desorption
5.
Multiple Choice
Extent of physisorption of a gas increases with ___________.
increase in temperature.
decrease in temperature.
decrease in surface area of adsorbent.
decrease in strength of van der Waals forces.
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