Thank you for reporting, we will resolve it shortly
Q.
Which of the following is a high spin complex?
Solution:
The complex $\left[ FeF _{6}\right]^{4-}$ is paramagnetic and uses outer orbital (4d) in hybridisation $\left( sp ^{3} d ^{2}\right)$; it is thus called as outer orbital or high spin or spin free complex. So :
$sp ^{3}\, d ^{2}$ hybrid orbitals
Six pairs of electrons from six $F ^{-}$ions.
