1.Which of the following is correctly matched?a.[Co(NH3)6]Cl3[\text{Co(NH}_3)_6]\text{Cl}_3[Co(NH3)6]Cl3 — diamagnetic, Δo<\Delta_o <Δo< pairing energyb.K4[Fe(CN)6]\text{K}_4[\text{Fe(CN)}_6]K4[Fe(CN)6] — low spin complex, colourlessc.[Co(H2O)6]SO4[\text{Co(H}_2\text{O)}_6]\text{SO}_4[Co(H2O)6]SO4 — paramagnetic, high spind.[NiF6]2−[\text{NiF}_6]^{2-}[NiF6]2− — diamagnetic, Δo>\Delta_o >Δo> pairing energyLogin to continueOnly logged in users canattempt or see the solution.