1.

The complex ion having minimum magnitude of Delta_o(CFSE) is

Answer»

`[CO(NH_(3))_(6)]^(3+)`
`[Cr(H_(2)O)_(6)]^(3+)`
`[Cr(CN)_(6)]^(3-)`
`[CoCl_(6)]^(3-)`

Solution :The magnitude of `Delta_(o)` follows the ORDER :
`Cl^(-) LT H_(2)O lt NH_(3)lt CN^(-)`


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