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In physical adsorption, the forces assoc...

In physical adsorption, the forces associated are :

A

ionic

B

covalent

C

van der waals

D

H-bonding

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The correct Answer is:
C
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Physical adsorption is :

In physical adsorption, the molecules of adsorbate are held by chemical forces.

What is physical adsorption.

A : In physical adsorption, heat of adsorption is low i.e., 20 - 40 kJ /mol. R : On increasing temperature, physical adsorption increases.

OP TANDON-ADSORPTION AND CATALYSIS-OBJECTIVE QUESTIONS (LEVEL-A)
  1. the process whichh is catalysed by one of the product is called

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  2. the heat evolved in physisorption lies in the range (in kJ/mol) of :

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  3. In physical adsorption, the forces associated are :

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  4. In Ziegler-Natta polymerisation of ehtylene , the active species are :

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  5. ZSM-5 is used to conver :

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  6. A catalyst increases rate of reaction by

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  7. The role of a catalyst in a reversble reaction is to

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  8. A catalyst in a reversible reaction is to :

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  9. Which of the following is/are not possible in case of autocatalysis?

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  10. Which of the following statements is false ?

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  11. The rate of physisorption increases with

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  12. Which is not correct for physical adsorption?

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  13. According to the adsorption theory of catalysis the speed of the react...

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  14. The chemical equlibrium of a reversible reaction is not influenced by ...

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  15. Identify the gas which is readily adsorbed by activated charcoal?

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  16. Which of the following belong(s) to the family of enzymes?

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  17. Which statement about zeolite is false ?

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  18. Adsorpton of gases on solid surface is generally exothermic because :

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  19. Identify the correct statement regarding enzymes.

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  20. The extent of adsorption of a gas on a solid depends on the :

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