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Question: Answered & Verified by Expert
The oxidation state of iron in $\mathrm{K}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]$ is,
ChemistryCoordination CompoundsCOMEDKCOMEDK 2020
Options:
  • A 2
  • B 3
  • C 4
  • D 1
Solution:
1139 Upvotes Verified Answer
The correct answer is: 2
Oxidation state of iron $\left(x^{2}\right)$ in $\mathrm{K}_{4}\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]$ is
$$
\begin{array}{r}
4+x+6 x(-1)=0 \\
x=2
\end{array}
$$

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