Which among the following is likely to have Schottky defect.

Options

A. `AgCl`
B. `NaCl`
C. `TiCl`
D. `MgCl_(2)`

Answer

To determine which among the given options is likely to have a Schottky defect, we need to understand the characteristics of Schottky defects and analyze the options based on these characteristics.

### Step-by-Step Solution:

1. **Understanding Schottky Defect**:
- A Schottky defect occurs when an equal number of cations and anions are missing from the crystal lattice. This results in vacancies that maintain the electrical neutrality of the solid.
- It is typically found in ionic solids where the sizes of cations and anions are similar.

2. **Identifying Characteristics**:
- Equal number of cations and anions missing.
- Similar ionic sizes (radius ratio close to 1).
- High coordination number ratio.
- Decrease in density due to the presence of vacancies.

3. **Analyzing Options**:
- We need to look at the provided options (not specified in the question) and check if any of them are ionic compounds with similar cation and anion sizes.

4. **Examples of Compounds with Schottky Defect**:
- Common examples include NaCl, CsCl, and AgBr. These compounds can exhibit Schottky defects due to their ionic nature and similar ionic sizes.

5. **Conclusion**:
- Based on the characteristics and examples, if NaCl is one of the options, it is likely to have a Schottky defect. Therefore, NaCl would be the correct answer.