MCQOPTIONS
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| 1. |
The Refrigerant FREON' is |
| A. | Calcium Tetra Fluoride |
| B. | Difluoro Dichloro Methane |
| C. | Fluorspar and Felspar |
| D. | Hydrofluosilicic Acid |
| Answer» C. Fluorspar and Felspar | |