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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

In physisorption adsorbent does not show specificity for any particular gas because ______.

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प्रश्न

In physisorption adsorbent does not show specificity for any particular gas because ______.

विकल्प

  • involved van der Waals forces are universal.

  • gases involved behave like ideal gases.

  • enthalpy of adsorption is low.

  • it is a reversible process.

MCQ
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उत्तर

In physisorption adsorbent does not show specificity for any particular gas because involved van der Waals forces are universal.

Explanation:

Physisorption is not specific to any gas since it involves van der Waals forces and no specific bonds are formed.

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अध्याय 5: Surface Chemistry - Exercises [पृष्ठ ६४]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
अध्याय 5 Surface Chemistry
Exercises | Q I. 10. | पृष्ठ ६४

संबंधित प्रश्न

Why is adsorption always exothermic?


Write any two characteristics of chemisorption.


Give reason why a finely divided substance is more effective as an adsorbent.


What are the factors which influence the adsorption of a gas on a solid?


Discuss the effect of temperature on the adsorption of gases on solids.


How does chemisorption vary with temperature?


Answer in one sentence:

Name type of adsorption in which the compound is formed.


Which among the following is a property of physisorption?


Chromatography is based on the principle of ____________.


The physical adsorption is due to ____________.


Which of the following is not a favourable condition for physical adsorption?


In which of the following reactions heterogenous catalysis is involved?

(a) \[\ce{2SO2 (g) + O2 (g) ->[NO(g)] 2SO3 (g)}\]

(b) \[\ce{2SO2 (g) ->[Pt(s)] 2SO3 (g)}\]

(c) \[\ce{N2 (g) + 3H2 (g) ->[Fe(s)] 2NH3 (g)}\]

(d) \[\ce{CH3COOCH3 (l) + H2O (l) ->[HCI(l)] CH3COOH (aq) + CH3OH (aq)}\]


Why do physisorption and chemisorption behave differently with rise in temperature?


What is the role of activated charcoal in gas mask used in coal mines?


Rate of physisorption increase with:-


Write three differences between physisorption and chemisorption.


Assertion A : Activated charcoal adsorbs SO2 more efficiently than CH4.

Reason R : Gases with lower critical temperatures are readily adsorbed by activated charcoal.
In light of the above statements, choose the correct answer from the options given below.


Which of the following statements is incorrect regarding physisorptions?


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