1.If Δ\DeltaΔ is crystal field splitting energy and PPP is mean pairing energy per pair, then the stabilizing energy of complex [FeF6]4−[\text{FeF}_6]^{4-}[FeF6]4− is:a.−2.4 Δ+3P-2.4\,\Delta + 3P−2.4Δ+3Pb.−2.0 Δ+3P-2.0\,\Delta + 3P−2.0Δ+3Pc.−1.6 Δo+P-1.6\,\Delta_o + P−1.6Δo+Pd.−0.4 Δo-0.4\,\Delta_o−0.4ΔoLogin to continueOnly logged in users canattempt or see the solution.