Name a hexadentate ligand and draw its structure. Write the formula of the complex which it forms with `Co (III)`. Also draw the structure of this complex.

Explanation

To solve the question, we will follow these steps:

### Step 1: Identify a Hexadentate Ligand
A well-known hexadentate ligand is **EDTA** (ethylenediaminetetraacetic acid). It has the ability to bind to a metal ion at six coordination sites.

### Step 2: Draw the Structure of EDTA
The structure of EDTA can be represented as follows:

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