Q18
CFCs are used as
A.
refrigerants
B.
insulators
C.
aerosol propellants
D.
all the above
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Chlorofluorocarbons (CFCs) are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine. They are used in the manufacture of aerosol sprays, blowing agents for foams and packing materials, as solvents, and as refrigerants.