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In the lower atmosphere, ozone is formed by the reaction betweenA. `O_(2)` and `CFCs`B. `NO_(2)` and `O_(2)`C. `O_(2)` and `NO`D. all of these |
Answer» Correct Answer - B `NO_(2)+hv rarr NO+O` `O_(2)+O+M rarr O_(3)+M` where `M`, represents a third body (a molecule or a particle) needed to absorb the excess energy of the reaction, without which there would just be an exchange of oxygen atoms within the oxygen molecule. Reaction with `NO` keeps the concentration of `O_(3)` in balance called steady state (0.025ppm)`. |
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