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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(CN)_6]^(3-)`

B

`[Co(C_2O_4)_3]^(3-)`

C

`[Co(H_2O)_6]^(3+)`

D

`[Co(NH_3)_6]^(3+)`

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The correct Answer is:
A
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