Question

Ozone depletion over Antarctica is due to the

• A. formation of chlorine nitrate $\left(\left( ClONO _{2}\right)\right)$
• B. formation of HCl
• C. formation of $HOCl$ and $Cl _{2}$ which are converted back into reactive $Cl$ atoms
• D. None of the above

Answer 1

Answer: (C)

formation of $HOCl$ and $Cl _{2}$ which are converted back into reactive $Cl$ atoms

Answer 2

$HOCl$ and $Cl _{2}$ are formed over Antarctica.These are converted back into reactive $Cl$ atoms which start the chain reaction with $O _{3}$ causing its depletion.