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Which is not correct for physical adsorp...

Which is not correct for physical adsorption?

A

Adsorption increases with increase in temperature

B

Adsorption is spontaneous

C

Both enthalpy and entropy of adsorption are negative

D

Adsorption on solid is reversible

Text Solution

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The correct Answer is:
A
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OP TANDON-ADSORPTION AND CATALYSIS-OBJECTIVE QUESTIONS (LEVEL-A)
  1. Which of the following statements is false ?

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  2. The rate of physisorption increases with

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  3. Which is not correct for physical adsorption?

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

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

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

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

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  8. Which statement about zeolite is false ?

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

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  10. Identify the correct statement regarding enzymes.

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

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  12. Which of the following is true in respect of chemical adsorption?

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  13. If x/m is the mass of adsorbate adsorbed per unit mass of adsorbent, P...

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  14. The efficiency of an enzyme to catalyse a reacrtion is due to its capa...

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  15. Although nitrogen does not adsorb on surface at room temperature, it a...

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  16. What is the equation form of Langmuir adsorption isotherm undre high p...

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  17. What is an adsorption isotherm? Describe Freundlich adsorption isother...

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  18. Which of the following statements is incorrect regarding physisorption...

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  19. Active charcoal is a good catalyst because :

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

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