Question

Which of the following energy level diagram for ${\left[Fe{F}_6\right]}^3$ is correct on the basis of crystal field theory?

• A.
• B.
• C.
• D.

Answer 1

Answer: (C)

${\left[Fe{F}_6\right]}^{3-}\Rightarrow x-6=-3$

$x=-3+6$

$x=+3$

$F{e}^{3+}=$

Fluorine is a weak ligand, $\therefore$ pairing does not occur.