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Adsorption is a surface phenomenon and i...

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

A

The concentration of reactant molecules at the active centre of the catalyst becomes high due to adsorption

B

In the process of adsorption the activation energy of the molecules becomes large

C

Adsorption produces heat which increases the speed of the reaction

D

Adsorption lower the reaction temperature

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A
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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. 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. 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. The ease with which the gases H_(2),CH_(4),CO_(2)and NH_(3) are adsorbed on the surface of charcoal is :

Adsorption is the phenomenon in which a substance

Adsorption is the phenomenon in which a substance :

Which gas is adsorbed easily at solid surface?

NARAYNA-SURFACE CHEMISTRY -EXERCISE -2 (C.W. ) ADSORPTION
  1. Chromatography is a technique based on

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  2. The volume of gases H(2), CH(4), CO(2) and NH(3) adsorbed by 1 g of ch...

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  3. Which of the following processes of metallurgy involves adsorption ?

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  4. According to langmuir adsorption isotherm amount of gas adsorbed at ve...

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  5. Which of the following relations is /are correct? (i) x//m= constant...

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  6. A catalyst :

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  7. In a reversible reaction a catalyst :-

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  8. Which of the following is not an example of homogeneous catalysis?

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

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  10. Freundlich adsorption isotherm is given by the expression (x)/(m) = kP...

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  11. In which of the following process, a catalyst is not used ?

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  12. Adsorption is a surface phenomenon and it differs feom adsorption whic...

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  13. Organic catalysts differ from inorganic catalysts

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  14. Which one of the following is not a homogeneous catalytic reaction ?

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  15. Decomposition of urea into NH(3) and CO(2) is followed by the action o...

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  16. Which of the following enzyme is used in the conversion of proteins to...

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  17. Zeolites are microporous catalyst. General formula of Zeolite may be g...

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  18. CH(3)COCI+H(2)overset(Pd)(rarr)CH(3)CH(2)OH overset(Pd//BaSO(4))und...

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  19. An example of auto - catalytic reaction is

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  20. A homogenous catalytic reaction takes place through the three alternat...

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