In the Smelting of Iron from Iron Oxide According to the Equation

question 135

Multiple Choice

In the smelting of iron from iron oxide according to the equation
Fe₂O₃(s) + 3CO(g) $\longrightarrow$ 2Fe(s) + 3CO₂(g)
What is the change in oxidation number for iron?

• A) +3
• B) -3
• C) +2
• D) -2
• E) 0

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