Match the types of defects given in Column I with the statement given in Column II.
| Column I | Column II |
| A. Impurity defect | 1. NaCl with anionic sites called F-centres |
| B. Metal excess defect | 2. FeO with Fe3+ |
| C. Metal deficiency defect | 3. NaCl with Sr2+ and some cationic sites vacant |
Codes
| A | B | C | |
| 1. | 2 | 3 | 1 |
| 2. | 3 | 1 | 2 |
| 3 | 1 | 2 | 3 |
| 4. | 2 | 1 | 3 |
© 2026 GoodEd Technologies Pvt. Ltd.
