Question

Oxidation state of Fe in $F{e}_3{O}_4$ is

• A. 2/3
• B. 4/5
• C. 5/4
• D. 8/3

Answer 1

Answer: (D)

$F{e}_3{O}_4,$ suppose the oxidation number of Fe is $x$ . So, $3\times x+4(-2)=0$ $3x-8=0$ $3x=8$ $x=\frac{8}{3}$