Why must we mention the oxidation state of iron in iron oxide?

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Why must we mention the oxidation state of iron in iron oxide?

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Answer 1 · 2017-02-18T19:20:28

$F e_{2} O_{3}$ $Fe_2O_3$ = Iron (III) Oxide
$F e O$ $FeO$ = Iron (II) Oxide

Explanation:

$F e_{2} O_{3}$ $Fe_2O_3$ = Iron (III) Oxide:
Explains that the oxidation state of Iron in this compound $F e_{2} O_{3}$ $Fe_2O_3$ is $F e^{3 +}$ $Fe^(3+)$

$F e O$ $FeO$ = Iron (II) Oxide: Explains that the oxidation state of Iron in this compound $F e O$ $FeO$ is $F e^{2 +}$ $Fe^(2+)$

Both are two different compounds, with different physical as well as chemical properties therefore it is must to mention the oxidation state along with the compound name.

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Why must we mention the oxidation state of iron in iron oxide?

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