1.

For the given set of complexes : (P) [Co(CN)_(6)]^(3-)" and "[Co(H_(2)O)_(6)]^(3+) (Q) [Co(H_(2)O)_(6)]^(3+)" and "[Rh(H_(2)O)_(6)]^(3+) (R ) [Co(H_(2)O)_(6)]^(2+)" and "[CoF_(6)]^(3-) (S) [Co(NH_(3))_(6)]^(3+)" and "[CoF_(6)]^(3-) Select the correct order for Delta_(0):

Answer»

`[Co(CN)_(6)]^(3-)"GT "[Co(H_(2)O)_(6)]^(3+)`
`[Co(H_(2)O)_(6)]^(2+)"gt "[CoF_(6)]^(3-)`
`[Co(H_(2)O)_(6)]^(3+)"gt "[Rh(H_(2)O)_(6)]^(3+)`
`[Co(NH_(3))_(6)]^(3+)"gt "[CoF_(6)]^(3-)`

Solution :`Delta_(0)" of "Co^(3+) gt Co^(2+)` complexes
`Delta_(0)" of "CN^(-) gt NH_(3) gt H_(2)O gt F^(-)` complexes


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