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Hydrogen

Long Answer Type

71.

What is water gas? How will you prepare hydrogen from water gas?
Or
How is dihydrogen prepared on a commercial scale?

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Short Answer Type

72. What do you understand by the term syngas?

Syngas (or synthesis gas) is a mixture of CO and H₂. It is obtained by the action of steam on hydrocarbon or coke at high temperature in the presence of nickel as catalyst.

Nowadays ‘syngas’ is obtained from sewage, sawdust, scrap wood, newspaper etc. The process of getting syngas from coal is called “'coal gasification. ”.

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73.

How can the production of dihydrogen, obtained from 'coal gasification' be increased?

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74.

What do you understand by the term:
water-gas shift reaction.

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75.

How will you prepare hydrogen commercially from hydrocarbons?
Or
What is understood by ‘water gas shift reaction’? Discuss its use for the preparation of hydrogen.

113 Views

76.

Describe the bulk preparation of hydrogen by an electrolytic method. What is the role of electrolyte in this process?
Or
How is dihydrogen manufactured by the electrolysis of water?

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