Draw the structures of `[Co(NH_(3))_(6)]^(3+),[Ni(CN)_(4)]^(2-)` and `[Ni(CO)_(4)]` Write the hybridisation of atomic orbitals of the transition metal in each case .

Explanation

To solve the problem, we will follow these steps for each of the coordination compounds: identify the oxidation state of the metal, determine the hybridization of the metal, draw the structure, and summarize the geometry and magnetic nature.

### Step 1: `[Co(NH₃)₆]³⁺`

1. **Determine Oxidation State:**
- Let the oxidation state of Co be \( x \).
- The amine ligand (NH₃) is neutral, so its contribution is 0.
- The overall charge of the complex is +3.
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