Match the types of colloidal systems given in Column I with the names given in Column II.
| Column I | Column II |
| A. Solid in Liquid | 1. Foam |
| B. Liquid in solid | 2. Sol |
| C. Liquid in Liquid | 3. Gel |
| D. Gas in Liquid | 4. Emulsion |
Codes
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 1 | 2 | 3 | 4 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 1 | 3 | 2 |
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