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A catalytic poison renders the catalyst ...

A catalytic poison renders the catalyst ineffective beacause :

A

it is prefertially absorbed on the catlyst

B

it adsorbs the molecules of the reactants

C

it combines chemically with the catalyst

D

it combines with one of the reactants

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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 catalysts is sensitive to temperature changes ?

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  2. The catalyst used in the Deacon's process for the manufacture of chlor...

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  3. A catalytic poison renders the catalyst ineffective beacause :

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  4. A finely divided state of the catalyst is more efficient because in th...

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  5. Which of the following statement is not true?

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  6. The catalyst used in the manufacture of hydrogen by Bosch's process is...

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  7. The catalyst used for olefin polymerisation is

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

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  9. Which of the following statement is false ?

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  10. An example of autocatalytic reaction is

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  11. Enzyme catalysis is an example of :

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  12. Which one of the following statements is incorrect in the case of hetr...

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  13. Regarding criteria of catalysis which one of the following statements ...

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

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  15. The effect of a catalyst in a chemical reaction is to change the :

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  16. Protons accelerate the hydrolysis of esters . This is an example os :

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  17. in the Ostwald's process for the manufacture of HNO(3), the catalyst u...

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  18. The effieciency of an enzyme in catalysing a reaction is due to its ca...

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  19. The enzyme are killed :

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  20. The enzyme ptylin used for digestion of food is present in :

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