`FeCl_(3)` dissolves in:

Options

A. water
B. ether
C. ammonia
D. A and B both

Explanation

To determine the solubility of FeCl₃ (ferric chloride) in various solvents, we need to analyze its behavior in each of the provided options: water, ether, ammonia, and both A and B.

### Step-by-Step Solution:

1. **Understanding FeCl₃**:
- Ferric chloride (FeCl₃) is an electron-deficient compound. Iron in FeCl₃ has six valence electrons and can accept a lone pair of electrons, making it a Lewis acid.

**Hint**: Recall that Lewis acids are electron pair acceptors.

2. **Solubility in Water**:
- When FeCl₃ is added to water, it forms a complex with water molecules. Specifically, it can form a hydrated complex, often represented as FeCl₃·6H₂O. This complexation allows FeCl₃ to dissolve in water.

**Hint**: Think about how hydration affects ionic compounds and their solubility.

3. **Solubility in Ether**:
- Ether contains oxygen, which has lone pairs of electrons. When FeCl₃ is mixed with ether, the oxygen donates a lone pair to the electron-deficient iron, allowing FeCl₃ to dissolve in ether as well.

**Hint**: Consider the role of lone pairs in solubility and complex formation.

4. **Interaction with Ammonia**:
- When FeCl₃ is mixed with ammonia (NH₃), it does not simply dissolve. Instead, it reacts to form a complex, specifically Fe(NH₃)₂Cl₂, along with ammonium chloride (NH₄Cl). This indicates that FeCl₃ does not dissolve in ammonia but instead undergoes a chemical reaction.

**Hint**: Differentiate between dissolution and chemical reaction when mixing compounds.

5. **Conclusion**:
- Based on the analysis, FeCl₃ is soluble in both water and ether, but it does not dissolve in ammonia. Therefore, the correct answer to the question is that FeCl₃ dissolves in water and ether.

### Final Answer:
FeCl₃ dissolves in water and ether (both A and B).

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