Oxidation state of iron in `Fe(CO)_(4)` is

Options

A. `+1`
B. `-1`
C. `+2`
D. 0

Explanation

To determine the oxidation state of iron in the complex `Fe(CO)₄`, we can follow these steps:

### Step 1: Identify the components of the compound
The compound `Fe(CO)₄` consists of one iron (Fe) atom and four carbon monoxide (CO) ligands.

### Step 2: Determine the oxidation state of CO
Carbon monoxide (CO) is a neutral ligand, which means it has an oxidation state of 0.

### Step 3: Set up the equation for the oxidation state
Let the oxidation state of iron (Fe) be represented as \( x \). Since there are four CO ligands, we can write the equation as follows:
\[ x + 4 \times (0) = 0 \]

### Step 4: Solve for the oxidation state of iron
This simplifies to:
\[ x + 0 = 0 \]
Thus, \( x = 0 \).

### Conclusion
The oxidation state of iron in `Fe(CO)₄` is 0.

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