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AIIMS 2002
Exam
AIIMS
Year
2002
Subject
Chemistry
Chapter
Redox Reactions

AIIMS 2002 · Chemistry · Redox Reactions

Oxidation state of Fe in Fe_3 O_4 is

Oxidation state of Fe\mathrm{Fe} in Fe3O4\mathrm{Fe}_3 \mathrm{O}_4 is

Options

  1. A3/23 / 2
  2. B5/45 / 4
  3. C4/54 / 5
  4. D8/38 / 3

Correct answer

D. 8/38 / 3

Step-by-step solution

Let the oxidation state of Fe be xx⇒3x+4(−2)=0⇒x=+83\begin{aligned}& \Rightarrow 3 x+4(-2)=0 \\ & \Rightarrow x=+\frac{8}{3} \end{aligned}$$
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