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In Heber's process. Hydrogen is obtained...

In Heber's process. Hydrogen is obtained by reacting methane with steam in presence of NiO as catalyst. The process is known as steam reforming. Why is it necessary to remove CO when ammonia is obtained by Haber's process?

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CO acts as a poison for the catalyst used in the manufacture of `NH_(3)` by Haber's process. Hence, it is necessary to remove it.
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NCERT ENGLISH-SURFACE CHEMISTRY-Exercise
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  2. Why are powdered substances more effective adsorbent than their crysta...

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  3. In Heber's process. Hydrogen is obtained by reacting methane with stea...

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  4. Why is ester hydrolysis slow in the beginning and becomes faster after...

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  5. What is the role of desorption in the process of catalysis?

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  6. What modification can you suggest in the Hardy Schulze law?

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  7. Why is it essential to wash the precipitate with water before estimati...

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  8. Distinguish between the meaning of the terms adsorption and absorption...

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  9. Write differences between physisorption and chemisorption.

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  10. Give reason why a finely divided substance is more effective as an ads...

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  11. What are the factors which influence the adsorption of a gas on a soli...

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

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  13. What do you understand by activation of adsorption : How is it achiev...

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  14. What role does adsorption play in heterogeneous catalysis ?

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  15. Why is adsorption always exothermic ?

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  16. How are the colloidal solutions classified on the the basis of physica...

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  17. Disuss the effect of pressure and temperature on the adsorption of gas...

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  18. What are lyophilic and lyophobic sols?Give one example of each type ? ...

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  19. What is the difference between multimolecular and macromolecular colli...

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  20. What are enzymes ? Write in brief the mechanism of enzyme catalysis ?

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