1.

Among the following pair of complexes, in which case the Delta_(0) value is higher for the first one?

Answer»

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

Solution :Down the GROUP, C.F. SPLITTING INCREASES `40-50%`.


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