For which of the following coordination complexes will the value of $\Delta_0$ be the maximum?
- A$[Co(CN)_6]^{3-}$
- B$[Co(C_2O_4)_3]^{3-}$
- C$[Co(H_2O)_6]^{3+}$
- D$[Co(NH_3)_6]^{3+}$
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$I: [Co(NH_3)_6]^{3+}; II: [Co(H_2O)_6]^{3+}; III: [Co(CN)_6]^{3-}; IV: [Co(NH_3)_5(H_2O)]^{3+}; V: [CoF_6]^{3-}$
DifficultJEE MAIN 2026
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