Question

The higher energy uv radiations splits apart some molecular oxygen into_____ atom.

Answer 1

Ozone is formed at the higher level of atmosphere by the action of UV radiation on molecule. High energy UV radiations split apart some oxygen molecules into atomic oxygen which react with molecular oxygen to form ozone molecules.

Answer 2

The higher energy UV radiation splits apart some molecular oxygen into its oxygen atom.

• Molecular oxygen i.e. O₂ splits into its atoms (due to UV radiations) i.e. oxygen atom free radicals O.

         O₂     →   O + O

• These free radicals of oxygen combine with molecular oxygen to form ozone.

         O₂ + O  → O₃

• The molecular formula for ozone is O₃.
• O₃ again due to UV radiations from the sun, splits into molecular oxygen and oxygen atom radical.

        O₃    →  O₂ + O