CFCs stands for…………..
a) chlorofluorocarbons
b) collect fluorocarbon
c) chlorofluoro compounds
d) none of these
At room temperature, CFCs are usually ……
a) colorless gases
b) liquids
c) both a & b
d) none of these
CFCs are used
for…………..
a) refrigerators
b) air-conditioners
c) propellant in aerosol sprays in foams
d) all of these
Due to chemistry un-reactive nature of CFCs, they are used as a …………..
a) solute
b) solvent
c) solution
d) suspension
………have been released to the atmosphere by the use of aerosols containing sprays.
a) fluorine
b) carbon
c) chlorine
d) CFCs
…………..in CFCs catalyzes the conversion of ozone to oxygen atom.
a) chlorine
b) fluorine
c) oxygen
d) all of these
