For the complex ion of `[Fe(CN)_6]^(3-)` :
Is it an inner orbital complex or an outerorbital complex ?

Explanation

To determine whether the complex ion \([Fe(CN)_6]^{3-}\) is an inner orbital complex or an outer orbital complex, we can follow these steps:

### Step 1: Determine the oxidation state of iron in the complex
The complex ion is \([Fe(CN)_6]^{3-}\). The cyanide ion (CN) has a charge of -1. Since there are six cyanide ions, their total contribution to the charge is \(-6\).

Let the oxidation state of iron be \(x\):
\[
x + 6(-1) = -3
...