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JEE Main · 2021 · 27 Aug 2021 · Shift 2 · Environmental Chemistry

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In stratosphere most of the ozone formation is assisted by :
  1. (A)-rays.
  2. (B)cosmic rays.
  3. (C)visible radiations
  4. (D)ultraviolet radiation.✓ Correct

Answer: (D)

Solution

In the stratosphere ultraviolet radiation first splits dioxygen into oxygen atoms, , and each atom then combines with another dioxygen molecule, . The energy that drives this ozone formation is supplied by ultraviolet radiation.

JEE Main · 2021 · 27 Aug 2021 · Shift 2 · Single correct option

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