Calculate oxidation number of Fe in Fe3O4 and write a suitable justifi – InterviewSolution

InterviewSolution

1.

Calculate oxidation number of Fe in Fe3O4 and write a suitable justification of your answer.

Answer»

Let oxidation number of Fe = x

\(\therefore\) 3(x) + 4(– 2) = 0

3x – 8 = 0

3x = 8

x = \(+\frac{8}{3}\)

By stoichiometry, Fe₃O₄ = \(\overset{+2-2}{FeO}.\overset{+3}{Fe_2}\overset{-2}{O_3}\)

\(\therefore\) Oxidation number of Fe in Fe₃O₄ is + 2 and +3.

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