Assertion: UV radiation causes photo dissociation of ozone into $\mathrm{O}_2$ and $\mathrm{O}$, thus…

Assertion: UV radiation causes photo dissociation of ozone into $\mathrm{O}_2$ and $\mathrm{O}$, thus causing damage to the stratospheric ozone layer. Reason : Ozone hole is resulting in global warming and climate change.
  1. If both assertion and reason are true and reason is the correct explanation of assertion.
  2. Ifboth assertion and reason are true but reason is not the correct explanation of assertion.
  3. If assertion is true but reason is false.
  4. If both assertion and reason are false.

Solution

$\mathrm{O}_3 \stackrel{\mathrm{UV} \text { (sun) }}{\longrightarrow} \mathrm{O}_2+\mathrm{O}$ .

Asked in: NEET 2016 (Phase 1)

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