Question: Which of the following statement is correct regarding CFC’s and HCFC’s?

I. These chemicals are inert, non flammable, nontoxic, and lighter than air and can remain intact for years II. CFCs are commonly used in Air conditioners and the Refrigeration industry (Freon gas), aerosol propellants (in perfumes and deodorants), in the foam packaging industry (Styropor, Thermocol) and as solvents for greases and glues. III. They contain Chlorine and Fluorine, common being CFC 11, CFC 12, CFC 22 and CFC 13.

Options:

A) I & II

B) II & III

C) Only III

D) All the above