(i) The chioro-fluoro derivatives of methane and ethane are called freons.
(ii) Freon is represented as freon-cba
c = number of C atoms –
b = number of H atoms + 1
a = total number of F atoms
(iii)
| Formula |
C - 1 |
H +1 |
F |
Name |
| CF2Cl2 |
1 - 1 = 0 |
0 + 1 = 1 |
2 |
Freon - 12 |
| CFCl3 |
1 - 1 = 0 |
0 + 1 = 1 |
1 |
Freon - 11 |
