Question

$[Fe{F}_6{]}^{3+}$ has $Fe$ atm _________ hybridized with unpaired _________ electrons.

• A. $d^{2}s{p}^3,4$
• B. $d^{2}s{p}^3,5$
• C. $s{p}^3{d}^2,5$
• D. $s{p}^3{d}^2,3$

Answer 1

The correct option is A $d^{2}s{p}^3,4$

$[Fe{F}_6{]}^{3+}$ shows octahedral geometry, the $d$ orbitals of $Fe$ split into two sets with an energy difference.

$1s$ orbital, $3p$ orbitals and $2d$ orbitals combine to give a single hybrid orbital $s{p}^3{d}^2$