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Two very stable compounds, Freon-12 and Freon-14, are used as liquid refrigerants. A Freon-12 molecule consists of one carbon atom, two chlorine atoms, and two fluorine atoms. A Freon-14 molecule consists of one carbon atom and four fluorine atoms.


81 In the space in your answer booklet, draw a structural formula for Freon-12. [1]


82 To which class of organic compounds do Freon-12 and Freon-14 belong? [1]

Verified Answer :

Hagrid
  1. There is 1 carbon, 2 chlorine and fluorine atoms in Freon 12. To draw them it forms a cross with C in the middle and Cl and F both on the opposite side. 
         Cl
          l
    F - C- F
          l
         Cl

    82. Freon-12 and Freon-14 are called halocarbons or just halides. 

Answer:

- The structural formula for Freon-12 (CCl2F2)

      F

       |

Cl - C - Cl

       |

      F

It has the same structure as methane (CH4) with Hydrogen atoms replaced by Chlorine and Fluorine

- Freon-12 and Freon-14 belong halocarbons, a compound in which the Hydrogen of a hydrocarbon is replaced by halogens, like Chlorine and Fluorine.

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