MCQOPTIONS
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| 1. |
The Refrigerant 'FREON' is |
| A. | alcium Tetra Fluoride |
| B. | ifluoro Dichloro Methane |
| C. | luorspar and Felspar |
| D. | ydrofluosilicic Acid |
| Answer» C. luorspar and Felspar | |