STATEMENT-1: Oxidation state of Fe in `Fe(CO)_(5)` is zero
and
STATEMENT-2: EAN of Fe in this complex is 36.

Options

A. Statement-1 is True , Statement-2 is True , Statement-2 is a correct explanation for Statement-1
B. Statement-1 is True , Statement-2 is True , Statement-2 is NOT a correct explanation for Statement-1
C. Statement-1 is True , Statement-2 is False
D. Statement-1 is False , Statement-2 is True

Answer

To solve the question, we need to analyze both statements regarding the complex `Fe(CO)_(5)`.

### Step 1: Determine the oxidation state of Fe in `Fe(CO)_(5)`.
- In the complex `Fe(CO)_(5)`, CO is a neutral ligand, meaning it does not contribute any charge.
- The overall charge of the coordination complex is zero because there are no charges on the ligands.
- Therefore, the oxidation state of Fe can be calculated as follows:
\[ \text{Oxidation state of Fe} + \text{Charge from ligands} = \text{Overall charge} \]
\[ \text{Oxidation state of Fe} + 0 = 0 \]
Thus, the oxidation state of Fe in `Fe(CO)_(5)` is 0.

### Step 2: Calculate the Effective Atomic Number (EAN) of Fe in `Fe(CO)_(5)`.
- The formula for EAN is:
\[ \text{EAN} = \text{Atomic number of metal} + (\text{Electron count of ligand} \times \text{Number of ligands}) + \text{Charge} \]
- The atomic number of Fe is 26.
- The electron count contributed by each CO ligand is 2, and there are 5 CO ligands.
- Since the complex has no charge, we can substitute the values into the EAN formula:
\[ \text{EAN} = 26 + (2 \times 5) + 0 \]
\[ \text{EAN} = 26 + 10 + 0 = 36 \]

### Conclusion:
- **Statement 1**: The oxidation state of Fe in `Fe(CO)_(5)` is 0. (True)
- **Statement 2**: The EAN of Fe in this complex is 36. (True)

However, while both statements are true, Statement 2 does not explain Statement 1. Therefore, the correct answer is that both statements are true, but Statement 2 is not a correct explanation of Statement 1.

### Final Answer:
Option 2: Statement 1 is true, Statement 2 is true, but Statement 2 is not a correct explanation of Statement 1.

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