Question

EAN rule is followed by $K_4\left[Fe\left(CN\right)\right]$ complex.

• A. True
• B. False

Answer 1

The correct option is A True

EAN rule is followed by every complex. In $K_4\left[Fe\right(CN\left)\right]$, oxidation state of $Fe:x-1=4\Rightarrow x=-3$

Means it has $3$ more electrons: $26+3=29$ electrons.

$EAN=29+2$ electrons from $CN=31$ electrons