Which Reaction Is a Good Small-Scale Laboratory Method for the Preparation

question 49

Multiple Choice

Which reaction is a good small-scale laboratory method for the preparation of hydrogen?

• A) CH₄(g) + H₂O(g) → CO(g) + 3H₂(g)
• B) 3FeCl₂(s) + 4H₂O(g) → Fe₃O₄(s) + 6HCl(g) + H₂(g)
• C) NaH(s) + H₂O(l) → NaOH(aq) + H₂(g)
• D) CO(g) + H₂O(g) → CO₂(g) + H₂(g)
• E) None of these methods is useful.

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