Using hydrogen (H₂)to reduce magnetite (Fe₃O₄)to iron (Fe)is considered to be "greener" than using carbon monoxide (CO)because

Question

Quizplus · Accepted Answer

The use of hydrogen to reduce magnetite to iron is considered "greener" than using carbon monoxide because water, the by-product of the reaction, contributes less to climate change than carbon dioxide, the by-product of the reaction when using carbon monoxide. Therefore, option B is the correct answer. Option A is incorrect because there are more molecules of water produced in the reaction than molecules of carbon dioxide, and not the other way around. Option C is incorrect because using hydrogen actually requires more energy than using carbon monoxide does. Option D is incorrect because the ease with which iron produced by using hydrogen can be replaced by aluminum is irrelevant to the environmental impact of the reaction.

Using Hydrogen (H₂)to Reduce Magnetite (Fe₃O₄)to Iron (Fe)is Considered to Be