MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the following is not a freon? |
| A. | CCl<sub>3</sub>F |
| B. | CCl<sub>2</sub>F<sub>2</sub> |
| C. | CBr<sub>2</sub>F<sub>2</sub> |
| D. | CClF<sub>3</sub> |
| Answer» D. CClF<sub>3</sub> | |