Question

The oxidation state of Fe in$FeS_{2}$ is

• A. – 2
• B.
  • 2
• C. 0
• D.
  • 1

Answer 1

Answer: (B)

• 2

Answer 2

The structure of $FeS_{2}$is $\begin{matrix} & & S \\ Fe & & \\ & & S \end{matrix}$

Therefore $FeS_{2}$contain one per disulphide linkage, which is similar to that of peroxide linkages, having contribution of – 2 units towards the oxidation state

Let the oxidation state of Fe = x

$\therefore$ $x - 2 = 0$ or x = 2

The oxidation state of Fe in $FeS_{2}$is + 2.