Two complex is given as `[CoF_(6)]^(3-) and [Co(C_(2)O_(4))_(3)]^(3-)`, which one complex is:
(i) diamagnetic
(ii) more stable
(iii) outer orbital complex and
(iv) low spin complex? `" " `(Atomic no. Of CO = 27)

Explanation

To solve the problem regarding the two complexes \([CoF_6]^{3-}\) and \([Co(C_2O_4)_3]^{3-}\), we will analyze each complex based on their magnetic properties, stability, hybridization, and spin state.

### Step-by-Step Solution:

1. **Determine the oxidation state of cobalt in both complexes:**
- In both complexes, cobalt has an oxidation state of +3.
- This can be determined from the overall charge of the complex and the known charges of the ligands (F⁻ for fluoride and C₂O₄²⁻ for oxalate).

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