Which compound is formed when iron reacts with carbon?

Options

A. `FeC_(2)`
B. `Fe_(3)C`
C. `FeC_(3)`
D. `Fe_(2)C`

Explanation

To determine which compound is formed when iron reacts with carbon, we can follow these steps:

### Step 1: Identify the Reactants
The reactants in this reaction are iron (Fe) and carbon (C).

### Step 2: Understand the Reaction
When iron and carbon react, they can form a compound known as iron carbide. This reaction typically occurs at high temperatures.

### Step 3: Write the Chemical Formula
The chemical formula for iron carbide is Fe3C. This indicates that three iron atoms combine with one carbon atom to form the compound.

### Step 4: Conclusion
Therefore, when iron reacts with carbon, the compound formed is iron carbide (Fe3C).

### Final Answer
The compound formed when iron reacts with carbon is **iron carbide (Fe3C)**.

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