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| 1. |
What are freons? How are they prepared? |
| Answer» Solution :Chlorofluorocarbon compounds are called FREONS. DICHLORODIFLUOROMETHANE is commonly called freon 12. It is prepared by the reaction of antimony TRIFLUORIDE on carbontetrachloride at `140^(@)C` using antimony PENTACHLORIDE as CATALYST. | |