• Ozone (O3) depletion in the atmosphere is of significant concern.
  • This gas serves as a protection against the ultraviolet rays of the sun.
  • Ozone is naturally depleted in addition to the depletion caused by human-made chemicals.
  • The depletion reaction is a two-step process.
  • The free radical is not a part of the overall equation, but can be detected in the lab.
  • An intermediate is always formed in an early step in the mechanism and consumed in a later step.
  • The role of intermediates in reaction mechanisms is described.
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