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

Understand the physiological changes in heart rate during the respiratory cycle.

Analyze the cardiac cycle and correlate it with mechanical events and their timing.

Distinguish between true and misconceived notions regarding ECG, heart chamber activities, and the cardiac cycle.

Understand the structure and function of different layers of blood vessels.

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