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Question
Very pure hydrogen is obtained by
Options:
A .  Reaction of coal or CO with steam
B .  Electrolysis of warm, aqueous solution of Ba(OH)2 between nickel electrodes
C .  Cracking of naphtha and fuel cell
D .  Adding zinc granules to all acids
Answer: Option B
:
B
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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