Which of the following statements is correct regarding the $[Fe(CN)_6]^{4-}$ complex?

Which of the following complexes is an outer orbital complex?

Total number of $e^-$ in $e_g$ orbitals of $Mn$ for the complex $[MnO_4]^-$ is:

In $[NiCl_4]^{2-}$,the number of unpaired electrons is

In which of the following configurations will there be the possibility of both paramagnetism and diamagnetism,depending on the nature of the ligands?

The structure of which of the following chloro species can be explained on the basis of $dsp^2$ hybridization?