In which of the following coordination entites the magnitude of `Delta_(0)` (CFSE in octehedral field) will be maximum. `(At. No .Co = 27)`A. `[Co(H_(2)O)_(6)]^(3+)`B. `[Co(NH_(3))_(6)]^(3+)`C. `[Co(CN)_(6)]^(3-)`D. `[Co(C_(2)O_(4))_(3)]^(3-)`

In which of the following coordination entites the magnitude of `Delta

1.	In which of the following coordination entites the magnitude of `Delta_(0)` (CFSE in octehedral field) will be maximum. `(At. No .Co = 27)`A. `[Co(H_(2)O)_(6)]^(3+)`B. `[Co(NH_(3))_(6)]^(3+)`C. `[Co(CN)_(6)]^(3-)`D. `[Co(C_(2)O_(4))_(3)]^(3-)`
Answer» Correct Answer - C As in all the given complex the central metal atom is same and contains same number of d electrons, thus CFSE is decided by ligands. In case of strong field ligand, CFSE is maximum. `CN^(-)` is a strong field ligand, Hence, in `[Co(CN)_(6)]^(3-)` magnitude of CFSE i.e. `Delta_(0)` is maximum.

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In which of the following coordination entites the magnitude of `Delta_(0)` (CFSE in octehedral field) will be maximum. `(At. No .Co = 27)`A. `[Co(H_(2)O)_(6)]^(3+)`B. `[Co(NH_(3))_(6)]^(3+)`C. `[Co(CN)_(6)]^(3-)`D. `[Co(C_(2)O_(4))_(3)]^(3-)`

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