Match the following refrigerants with refrigerators:
| Refrigerant | Refrigerator | ||
| 1. | Ammonia | A. | In marine refrigerators |
| 2. | Carbon dioxide | B. | In Air conditioners |
| 3. | Sulfur dioxide | C. | In vapor absorption refrigerators |
| 4. | Freon - 22 | D. | In household refrigerators |
1
(1) - (D), (2) - (A), (3) - (C), (4) - (B)
2
(1) - (B), (2) - (A), (3) - (D), (4) - (C)
3
(1) - (C), (2) - (D), (3) - (A), (4) - (B)
4
(1) - (C), (2) - (A), (3) - (D), (4) - (B)