`XeF_(2)` is iso-structural with :

Options

A. `BaCl_(2)`
B. `TeF_(2)`
C. `lCl_(2)^(-)`
D. `SbCl_(3).`

Explanation

To determine which compound is iso-structural with \( \text{XeF}_2 \), we need to analyze the structure and bonding of \( \text{XeF}_2 \) and compare it with the given options.

### Step 1: Analyze the structure of \( \text{XeF}_2 \)
- **Valence Electrons**: Xenon (Xe) has 8 valence electrons, and each fluorine (F) contributes 1 valence electron. Thus, \( \text{XeF}_2 \) has a total of \( 8 + 2 = 10 \) valence electrons.
- **Bonding**: In \( \text{XeF}_2 \), xenon forms two single bonds with two fluorine atoms. This uses 4 of the 10 valence electrons.
- **Lone Pairs**: The remaining 6 electrons (3 lone pairs) are located on the xenon atom.
- **Molecular Geometry**: The molecular geometry of \( \text{XeF}_2 \) is linear due to the arrangement of the three lone pairs in a trigonal bipyramidal geometry, which pushes the two bonded fluorine atoms to opposite ends.

### Step 2: Compare with the options
1. **\( \text{BaCl}_2 \)**:
- Structure: Linear (due to two bonded pairs).
- Lone Pairs: No lone pairs on Ba.
- **Not iso-structural** with \( \text{XeF}_2 \) because it has no lone pairs.

2. **\( \text{TeF}_2 \)**:
- Structure: Similar to \( \text{XeF}_2 \) with 2 bonded pairs and 2 lone pairs.
- **Not iso-structural** with \( \text{XeF}_2 \) because it has a bent structure.

3. **\( \text{ICl}_2^- \)**:
- Structure: Similar to \( \text{XeF}_2 \) with 2 bonded pairs and 3 lone pairs on the iodine atom.
- Molecular Geometry: Linear.
- **Iso-structural** with \( \text{XeF}_2 \) because it has the same arrangement of bonded and lone pairs.

4. **\( \text{F}_2\text{Cl}_3 \)**:
- Structure: More complex and does not have a similar arrangement of lone pairs and bonded pairs.
- **Not iso-structural** with \( \text{XeF}_2 \).

### Conclusion
The compound that is iso-structural with \( \text{XeF}_2 \) is \( \text{ICl}_2^- \).

### Final Answer
**\( \text{ICl}_2^- \)** is iso-structural with \( \text{XeF}_2 \).

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