Moderate

A single chlorine free radical can destroy how many ozone molecules ?

Correct answer: D. 100000

  • A. 10
  • B. 100
  • C. 10000
  • D. 100000

Explanation

A chlorine radical is regenerated in catalytic ozone-depletion cycles, allowing one radical to destroy approximately 100,000 ozone molecules before it is removed. Students may choose c, 10,000 molecules, by remembering the large catalytic effect but underestimating its approximate scale.

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