Chapter 13 Earth as a System: Energy, Matter, and Life - Part 5
During the stratospheric catalytic destruction of ozone by chlorine radicals (ClOₓ cycle), what specific intermediate sp...
Type: MCQ • Marks: 1
During the stratospheric catalytic destruction of ozone by chlorine radicals (ClOₓ cycle), what specific intermediate species acts as the chain-propagating radical regenerated in the termination/propagation sequence?
Options
A. Molecular oxygen (O₂)
B. Chlorine monoxide radical (ClO•)
C. Hydrochloric acid (HCl)
D. Nitrous oxide (N₂O)
Explanation
In the Chapman/Caldwell catalytic cycle, Cl• reacts with O₃ to form ClO• and O₂, and subsequent reaction of ClO• with atomic oxygen regenerates the Cl• radical, perpetuating chain destruction.
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Class 9thScience (MCQ)
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