Question

The geometry of complex ion $[Fe(CN{)}_6{]}^{4-}$ is

• A. trigonal pyramidal
• B. octahedral
• C. square planar
• D. tetrahedral.

Answer 1

Answer: (B)

$[Fe(CN{)}_6{]}^{4-}$
$Fe(26):3d^{6}4s^2$
$F{e}^{2+}$
$C{N}^{-}$ being a strong field ligand causes pairing of electrons