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Amongst [Co(o x)(3)]^(3-),[CoF(6)]^(3-) ...

Amongst `[Co(o x)_(3)]^(3-),[CoF_(6)]^(3-)` and `[Co(NH_(3))_(6)]^(3+)` :

A

`[Co(o x)_(3)]^(3-)` and `[CoF_(6)]^(3-)` are paramagnetic and `[Co(NH_(3))_(6)]^(+3)` is diamagnetic.

B

`[Co(o x)_(3)]^(3-)` and `[Co(NH_(3))_(6)]^(+3)` are paramagnetic and `[CoF_(6)]^(3-)`is paramagnetic.

C

`[Co(o x)_(3)]^(3-)` and `[Co(NH_(3))_(6)]^(3+)` are diamagnetic and `[CoF_(6)]^(3-)` is paramagnetic.

D

`[Co(NH_(3))_(6)]^(3+)` and `[CoF_(6)]^(3-)` are paramagnetic and `[Co(o x)_(3)]^(3-)` is diamagnetic.

Text Solution

AI Generated Solution

To determine the magnetic properties (paramagnetic or diamagnetic) of the coordination complexes `[Co(o x)_(3)]^(3-)`, `[CoF_(6)]^(3-)`, and `[Co(NH_(3))_(6)]^(3+)`, we will follow these steps: ### Step 1: Determine the oxidation state of cobalt in each complex. 1. **For `[Co(o x)_(3)]^(3-)`:** - Let the oxidation state of cobalt be \( x \). - The oxalato ligand (C2O4) has a charge of -2, and there are 3 oxalato ligands. - The equation becomes: ...
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