Which of the following demonstrates the naturally occurring formation of ozone?
A) An O₂ molecule absorbs UV energy, which causes it to split into two O atoms.
B) A single O atom combines with an O₂ molecule to form O₃.
C) An O₃ molecule absorbs UV radiation and splits into O₂ + O.
D) A Cl atom reacts with an O₃ molecule creating ClO and O₂.
E) A ClO molecule gives up its O to another single O from an O₃.

Question

Quizplus · Accepted Answer

The formation of ozone occurs when a single oxygen atom combines with an oxygen molecule to form O₃. This is the only option that directly shows the formation of ozone. Option A and C show the breakdown of ozone into oxygen radicals and Option D and E show the involvement of chlorine, which is not a natural component of the atmosphere.

Which of the Following Demonstrates the Naturally Occurring Formation of Ozone