Consider the following reactions provided by scientists working in Antrctica about ozone hole.
(I) `ClO^(.)+NO_(2) rarr ClONO_(2)`
(II) `Cl^(.)+CH_(4) rarr overset(.)(C )H_(3)+HCl`
(III) `ClONO_(2)+H_(2)O rarr HOCl+HNO_(3)`
(IV) `ClONO_(2)+HCl rarr Cl_(2)+HNO_(3)`
In summer season, there is less depletion of ozone layers due to reactions.

Options

A. both I and III
B. both III and IV
C. Both I and II
D. Both II and IV

Answer

C

Explanation

In summer season, reaction `I` and reaction II take place, `Coverset(.)(I)` (which cause depletion) is eliminated, hence less destruction to `O_(3)` layer.