Which of the following is ionic solid `:`

Options

A. XeF6(s)
B. PBr5(s)
C. CaC2(s)
D. All of these

Answer

To determine which of the given options is an ionic solid, we need to analyze each compound's structure and bonding characteristics. Ionic solids are typically formed from the electrostatic attraction between positively and negatively charged ions.

### Step-by-Step Solution:

1. **Identify the First Compound: XCF6**
- In solid form, XCF6 dissociates into XCF5⁺ and F⁻ ions.
- Since it forms ions, it exhibits ionic characteristics.
- **Conclusion**: XCF6 is an ionic solid.

2. **Identify the Second Compound: PBr5**
- PBr5 in solid form can be represented as PBr4⁺ and Br⁻.
- The presence of positive and negative ions indicates that it is ionic in nature.
- **Conclusion**: PBr5 is also an ionic solid.

3. **Identify the Third Compound: CaC2**
- Calcium carbide (CaC2) consists of Ca²⁺ and C2²⁻ ions.
- The presence of these ions confirms that it is an ionic solid.
- **Conclusion**: CaC2 is an ionic solid.

4. **Final Conclusion**:
- All three compounds (XCF6, PBr5, and CaC2) exhibit ionic characteristics.
- Therefore, the correct answer is that all the given options are ionic solids.