Question

Which one of the following reaction is catalyxed by high-energy ultraviolet radiation in the stratosphere ?
A. `O_(2)+OtoO_(3)`
B. `O_(2)toO+O`
C. `O_(3)+O_(3)to3O_(2)`
D. `O+OtoO_(2)`

Answer 1

Correct Answer - B

Answer 2

The second reaction occurs in presence of UV. Because O3 is first converted into O2 molecules and free O atoms with UV Rays. 1 free O atom combines with O2 molecule along with UV rays to form Ozone.O+O2 gives O3, not O2+O gives O3.

Hence, (2) is appropriate.

Thank you...