Very pure hydrogen is obtained by

Reaction of coal or CO with steam

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Electrolysis of warm, aqueous solution of Ba(OH)₂ between nickel electrodes

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Cracking of naphtha and fuel cell

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Adding zinc granules to all acids

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Solution

The correct option is B
Electrolysis of warm, aqueous solution of Ba(OH)₂ between nickel electrodes

Electrolysis of water is the method by which the most pure form of hydrogen can be obtained since the hydrogen gas is collected in an isolated volume.

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Similar questions

Granulated zinc is preferred over pure zinc to produce hydrogen by reacting with acids:-

p H

C u S O_{4} (a q)

N a_{2} S O_{4}

(P t)

N a C l

(P t)

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