What is the most correct name for the ionic compound formed by `Fe^(2+) and Cl^(-)` ?

Options

A. Iron chloride
B. Iron (I) chloride
C. Iron (II) chloride
D. Iron (III) chloride

Answer

To determine the most correct name for the ionic compound formed by \( \text{Fe}^{2+} \) and \( \text{Cl}^{-} \), we can follow these steps:

### Step 1: Identify the ions involved
The compound is formed from two ions:
- \( \text{Fe}^{2+} \) (Iron with a +2 charge)
- \( \text{Cl}^{-} \) (Chlorine with a -1 charge)

### Step 2: Determine the formula of the compound
To balance the charges of the ions, we need to ensure that the total positive charge equals the total negative charge. Since \( \text{Fe}^{2+} \) has a +2 charge and \( \text{Cl}^{-} \) has a -1 charge, we need two chloride ions to balance the charge from one iron ion:

\[ \text{Fe}^{2+} + 2 \text{Cl}^{-} \rightarrow \text{FeCl}_2 \]

### Step 3: Determine the oxidation state of iron
In the compound \( \text{FeCl}_2 \), the oxidation state of iron is +2, as indicated by the \( \text{Fe}^{2+} \) ion.

### Step 4: Name the compound
When naming ionic compounds, we typically name the metal first followed by the non-metal with an "-ide" suffix. However, since iron can have multiple oxidation states, we need to specify the oxidation state of iron in the name. Therefore, the correct name for \( \text{FeCl}_2 \) is:

\[ \text{Iron(II) Chloride} \]

### Final Answer
The most correct name for the ionic compound formed by \( \text{Fe}^{2+} \) and \( \text{Cl}^{-} \) is **Iron(II) Chloride**.

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