Hydrogen gas is not produced commercially (for nitrogeneous fertiliser manufacture) by

Question: Hydrogen gas is not produced commercially (for nitrogeneous fertiliser manufacture) by
[A].

iron-steam reaction.

[B].

electrolysis of water.

[C].

steam reforming of naphtha.

[D].

its cryogenic separation from coke oven gas.

Answer: Option A

Explanation:

No answer description available for this question.