Ozone depletion potential (ODP) indicates the effectiveness of CFCs in destroying stratosphere ozone. Which sequence correctly represents the compounds in increasing order of their ODPs?
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a
CHClF2 < CH3CCl2F < CCl2FCClF2
b
CHClF2 < CCl2FCClF2 < CH3CCl2F
c
CCl2FCClF2 < CHClF2 < CH3CCl2F
d
CH3CCl2F < CCl2FCClF2 < CHClF2
answer is A.
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Detailed Solution
Chlorine free radicals,Cl , formed by the hemolytic fission of C-Cl bonds in CFCs are responsible for destroying stratospheric ozone. Hence,CCl2FCClF2 (which has the largest number of C-Cl bonds) has the greatest ODP while CHClF2 has the smallest ODP.
Ozone depletion potential (ODP) indicates the effectiveness of CFCs in destroying stratosphere ozone. Which sequence correctly represents the compounds in increasing order of their ODPs?