Long Answer TypeWhat is water gas? How will you prepare hydrogen from water gas?
Or
How is dihydrogen prepared on a commercial scale?
Short Answer TypeHow will you prepare hydrogen commercially from hydrocarbons?
Or
What is understood by ‘water gas shift reaction’? Discuss its use for the preparation of hydrogen.
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?
The H-H bond dissociation enthalpy is the highest for a single bond between two atoms of any element.This influences the chemical behaviour of dihydrogen. It is inert at room temperature with many metals and non-metals. However, at high temperature or in the presence of the catalyst, it combines with metals and non-metals to form hydrides.
Since its orbital is incomplete with 1s electronic configuration, it combines with all the almost all elements.It takes part in reaction by
i) Loss of the only electron to give H+
ii)The gain of an electron to form H-.
iii)Sharing electron to form a single covalent bond.
Long Answer Type
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