Cl Atoms Formed Via Photolysis of C- Cl Bonds of Chlorofluorocarbons

question 18

Multiple Choice

Cl atoms formed via photolysis of C- Cl bonds of chlorofluorocarbons in the stratosphere are particularly effective in destroying ozone at these altitudes because .

• A) Cl atoms react with H atoms, which catalyze conversion of O₂ to O₃
• B) Cl atoms catalytically convert O₃ to O₂
• C) Cl atoms stoichiometrically convert O₃ to O₂
• D) Cl atoms absorb UV, which generate O atoms to react with O₂ to produce ozone
• E) Cl atoms react with N atoms, which catalyze conversion of O₂ to O₃