Which among following statements is true about $\mathrm{Na}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]$ ?
Which among following statements is true about $\mathrm{Na}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]$ ?
The complex ion carries -4 charge
It is a netural complex
The oxidation state of $\mathrm{Fe}$ in this complex is +6
The C.N. of Fe in this complex is 10
Solution
$\begin{aligned}
& \mathrm{x}-1 \times 6=-4 \\
& \mathrm{x}=+2 \\
&
\end{aligned}$
- The complex ion carries - 4 charge.
- The $\mathrm{CN}$ of $\mathrm{Fe}$ in this complex is 6 .