1.

Of the following complex ions. The one that probably has the largest overall formation constant K_(f) is :-

Answer»

`[Co(NH_(3))_(6)]^(3+)`
`[Co(H_(2)O)_(6)]^(3+)`
`[Co(NH_(3))_(2)(H_(2)O)_(4)]^(3+)`
`[Co (e N)_(3)]^(3+)`

Solution :order of `K_(f)=4 gt 1 gt 2 gt 3`
`[Co(e n)_(3)]^(3+)` has highest value of `K_(f)` among complex due to chelation


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