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In which of the following octahedral com...

In which of the following octahedral complexes of Co (at. no. 27), will the magnitude of `Delta_o` be the highest?

A

`[Co(NH_(3))_(6)]^(3+)`

B

`[Co(CN)_(6)]^(3-)`

C

`[Co(C_(2)O_(4))_(3)]^(3-)`

D

`[Co(H_(2)O)_(6)]^(3+)`

Text Solution

Verified by Experts

The correct Answer is:
B
Since `CN^(-)` is a very strong field ligand `Delta_("oct")` will be maximum for the complex.
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