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?

Question

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?

Quizplus · Accepted Answer

In Fe2O3, iron has an oxidation state of +3. In the product, Fe, iron is in its elemental state with an oxidation number of 0. The change in oxidation number for iron is from +3 to 0, which is a decrease of 3.

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