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प्रश्न
Give reasons for the following observations :
Powdered substances are more effective adsorbents.
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उत्तर
Adsorption is a surface phenomenon. Therefore, the process of adsorption is directly proportional to the surface area available for adsorption to take place. Both physisorption and chemisorption increase with an increase in the surface area. Powdered substances have large surface areas. Hence, powdered substances are more effective adsorbents.
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संबंधित प्रश्न
Differentiate between adsorbtion and absorption.
Why are powdered substances more effective adsorbents than their crystalline forms?
Give reason why a finely divided substance is more effective as an adsorbent.
Answer in one sentence:
Name type of adsorption in which the compound is formed.
Chromatography is based on the principle of ____________.
The extent of adsorption increases with the ____________.
Which of the following is not a favourable condition for physical adsorption?
Give an example where physisorption changes to chemisorption with rise in temperature. Explain the reason for change.
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 not true about physisorption?
