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Question

Very pure hydrogen (99.9%) can be made by which of the following processes?

A
Mixing natural hydrocarbons of high molecular weight
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B
Electrolysis of water
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C
Reaction of salt like hydrides with water
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D
Reaction of methane with steam.
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Solution

The correct option is C Reaction of salt like hydrides with water
Very pure H2(99.9%) is prepared by the action of water on salt hydrides (eqNaH)
NaH+H2ONaOH+H2

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