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

question 62

Multiple Choice

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

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

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