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Adsorption is the phenomenon in which a ...

Adsorption is the phenomenon in which a substance :

A

accumulates on the surface of the other substance

B

goes into the body of the other substance

C

remains close to the other substance

D

oxidises or reduces the other substance

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The correct Answer is:
A
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Adsorption is a process in which a substance accumulates on the ……………… of the other substance.

Adsorption is a surface phenomenon and it differs feom adsorption which occurs throughout the body of the substance which absorbs. In physisorption, the attractive forces are mainly van der Waals' forces while in chemisorption actual bonding occurs between the particles of adsorbent and adsorbente. Generally, easily liquefying gases are adsorbed more easily on the surface of a solid as compared to teh gases whihc are liquefied with difficult. Adsorption increases with the increases in pressure and decreases as the temperature is increases. According to adsorption theory of catalysis, the speed of the reaction increases because

Adsorption is a surface phenomenon and it differs feom adsorption which occurs throughout the body of the substance which absorbs. In physisorption, the attractive forces are mainly van der Waals' forces while in chemisorption actual bonding occurs between the particles of adsorbent and adsorbente. Generally, easily liquefying gases are adsorbed more easily on the surface of a solid as compared to teh gases whihc are liquefied with difficult. Adsorption increases with the increases in pressure and decreases as the temperature is increases. The effect of pressure on adsorption is high if:

Adsorption is a surface phenomenon and it differs feom adsorption which occurs throughout the body of the substance which absorbs. In physisorption, the attractive forces are mainly van der Waals' forces while in chemisorption actual bonding occurs between the particles of adsorbent and adsorbente. Generally, easily liquefying gases are adsorbed more easily on the surface of a solid as compared to teh gases whihc are liquefied with difficult. Adsorption increases with the increases in pressure and decreases as the temperature is increases. Freunlich adsorption isotherm gives a straight line on plotting :

Adsorption is a surface phenomenon and it differs feom adsorption which occurs throughout the body of the substance which absorbs. In physisorption, the attractive forces are mainly van der Waals' forces while in chemisorption actual bonding occurs between the particles of adsorbent and adsorbente. Generally, easily liquefying gases are adsorbed more easily on the surface of a solid as compared to teh gases whihc are liquefied with difficult. Adsorption increases with the increases in pressure and decreases as the temperature is increases. Whihc one of the followig is wrong about chemisorption ?

Adsorption is a surface phenomenon and it differs feom adsorption which occurs throughout the body of the substance which absorbs. In physisorption, the attractive forces are mainly van der Waals' forces while in chemisorption actual bonding occurs between the particles of adsorbent and adsorbente. Generally, easily liquefying gases are adsorbed more easily on the surface of a solid as compared to teh gases whihc are liquefied with difficult. Adsorption increases with the increases in pressure and decreases as the temperature is increases. The ease with which the gases H_(2),CH_(4),CO_(2)and NH_(3) are adsorbed on the surface of charcoal is :

Knowledge Check

  • Adsorption is a phenomenon, in which a substance

    A
    Goes into the body of some other substance
    B
    Accumulates on the surface of some other substance
    C
    Remains close to some other substance
    D
    Dose not accumulate on the surface of some other substance

  • Adsorption is a phenomenon in which a substance

    A
    goes into the body of the other substance
    B
    remains close to the other substance
    C
    accumulates on the surface of the other substance
    D
    penetrates into other substance

  • Water pollution is a phenomenon in which unwanted substances enter into a water body and thus into the water cycle. Which of the following is a consequence of water pollution?

    A
    Eutrophication
    B
    Greenhouse effect
    C
    Increase in aquatic life forms
    D
    Increase in the oxygen content of water
    • OP TANDON-ADSORPTION AND CATALYSIS-OBJECTIVE QUESTIONS (LEVEL-A)
    1. Adsorption is the phenomenon in which a substance :

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    2. Physical adsorption is appreciable at…………….temperature,

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    3. The rate of chemisorption :

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    4. In the adsorption of oxalic acid on activated charcoal, the activated ...

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    5. Which of the following is not a characteristic of chemisorption?

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    6. Which of the following is/are application(s) of adsorption?

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    7. Which one of the following is not a correct statement ?

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    8. Which of the following is the correct statement ?

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    9. A catalyst is a substance which

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    10. A catalyst

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    11. Which of the following statements is more correct ?

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    12. A catalysts is a substance which :

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    13. Which of the following reactions is an examples of homogeneous catalys...

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    14. The substance which decreases the rate of a chemical reaction is calle...

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    15. The decomposition of hydrogen peroxide can be slowed by the addition o...

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    16. The temperature at which the catalystic activity of the catalysts is m...

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    17. Efficiency of the catalysts depends on its :

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    18. Which of the following types of metal form the most efficient catalyst...

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    19. Enzymes are made up of

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    20. In lead chambe process , which one of the following oxides is used as ...

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