Q. The coordination number of Fe in $\left\lbrack Fe(CN)_{6} \right\rbrack^{4 -}\ \left\lbrack Fe(CN)_{6} \right\rbrack^{3 -}\$and $\left\lbrack {FeCl}_{4} \right\rbrack^{-}\$are respectively.

A) 2, 3, 3
B) 6, 6, 4
C) 6, 3, 3
D) 6, 4, 6
Explanation

(b)
The number of ligands attached to the central metal ion is called the coordination number.
So, coordination numbers of Fe in
$\left\lbrack Fe\ (CN)_{6} \right\rbrack^{4 -},\ \left\lbrack Fe(CN)_{6} \right\rbrack^{3 -}\ and\ \left\lbrack {FeCl}_{4} \right\rbrack^{-}\$are 6, 6 and 4 respectively.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.