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

Give Reason Why a Finely Divided Substance is More Effective as an Adsorbent. - Chemistry

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प्रश्न

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

उत्तर

Adsorption is a surface phenomenon. Therefore, adsorption is directly proportional to the surface area. A finely divided substance has a large surface area. Both physisorption and chemisorption increase with an increase in the surface area. Hence, a finely divided substance behaves as a good adsorbent.

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पाठ 5: Surface Chemistry - Exercises [पृष्ठ १४६]

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एनसीईआरटी Chemistry [English] Class 12
पाठ 5 Surface Chemistry
Exercises | Q 3 | पृष्ठ १४६

संबंधित प्रश्‍न

Give reasons for the following observations:

Physisorption decreases with increase in temperature.


What is the effect of temperature on chemisorption ?


Distinguish between the meaning of the terms adsorption and absorption. Give one example of.


What is the difference between physisorption and chemisorption?


Write one similarity between Physisorption and Chemisorption


How does chemisorption vary with temperature?


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?


Powdered substances are more effective adsorbents than their crystalline forms because ____________.


In physisorption, adsorption is generally ____________.


Give an example where physisorption changes to chemisorption with rise in temperature. Explain the reason for change.


What is the role of diffusion in heterogenous catalysis?


In physical adsorption, gas molecules are bound on the solid surface by


A plot of 10 g (x/m) versus 10 g p for the adsorption of a gas on the surface of a solid gives a straight line with slope equal to:-


Adsorption play no role in:-


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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