SURFACE CHEMISTRY

SURFACE CHEMISTRY

Assessment

Assessment

Created by

kuldeep sahu

Chemistry

12th Grade

740 plays

Hard

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20 questions

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1.

Multiple Choice

2 mins

1 pt

Which of the following process does not occur at the interface of phases?

crystallisation

heterogenous catalysis

homogeneous catalysis

corrosion

2.

Multiple Choice

2 mins

1 pt

At the equilibrium position in the process of adsorption ___________.

ΔH > 0

ΔH = TΔS

ΔH > TΔS

ΔH < TΔS

3.

Multiple Choice

2 mins

1 pt

Which of the following interface cannot be obtained?

liquid-liquid

solid-liquid

liquid-gas

gas-gas

4.

Multiple Choice

2 mins

1 pt

The term ‘sorption’ stands for ____________.

absorption

adsorption

both absorption and adsorption

desorption

5.

Multiple Choice

2 mins

1 pt

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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