Question
Question: which is most stable to uv radiations...
which is most stable to uv radiations
A
CFC
B
DDT
C
PFC
D
trichloromethane
Answer
PFC
Explanation
Solution
PFCs are most stable to UV radiation due to the exceptionally strong C-F bonds, which require very high energy to break, an energy not readily available from typical UV radiation. CFCs and trichloromethane contain weaker C-Cl bonds susceptible to UV cleavage. DDT also undergoes photodegradation.