Which of the following is the strongest field ligand?

Which one of the following statements is correct for $d^4$ ions $(P = \text{pairing energy})$?

Correct increasing order for the wavelength of absorption in the visible region for the complexes of $Co^{3+}$ is :

The values of the crystal field stabilization energies for a high spin $d^{6}$ metal ion in octahedral and tetrahedral fields,respectively,are :

Calculate the Crystal Field Stabilization Energy $(CFSE)$ for a high-spin $d^4$ tetrahedral complex.

The metal $d-$orbitals that directly face the ligands in $K_3[Co(CN)_6]$ are: