Write the hybridization and magnetic character of the following complexes:
(i) `[Fe(H_2O)_6]^(2+)`
(ii) `[Ni (CN)_4]^(2-)`
[Atomic number : Fe= 26,Ni = 28 ]

Explanation

To determine the hybridization and magnetic character of the complexes \([Fe(H_2O)_6]^{2+}\) and \([Ni(CN)_4]^{2-}\), we will follow these steps:

### Step 1: Determine the oxidation state of the central metal ion.

1. **For \([Fe(H_2O)_6]^{2+}\)**:
- Water (\(H_2O\)) is a neutral ligand, so it does not contribute to the charge.
- The overall charge of the complex is \(2+\).
- Therefore, the oxidation state of Fe is \(+2\).
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