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Standard VIII
Chemistry
CFCs
Ozone layer o...
Question
Ozone layer of upper atmosphere is being destroyed by
(a) SO
2
(b) photochemical oxidants
(c) CFC's
(d) smog
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Solution
(c) CFC's
CFC's used in refrigerators, aerosols, etc., destroy the ozone layer of the upper atmosphere.
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Similar questions
Q.
Ozone layer of upper atmosphere is being destroyed by
(a) SO
2
(b) photochemical oxidants
(c) CFC's
(d) smog
Q.
Ozone layer of upper atmosphere is being destroyed by
Q.
Ozone layer depletion is caused by
(a) PAN
(b) CO
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(c) CFCs
(d) coal burning
Q.
Photochemical smog is the chemical reaction of sunlight, nitrogen oxides and volatile ________ compounds in the atmosphere, which leaves airborne particles and ground-level ozone.
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Assertion: Ozone is destroyed by CFCs in the upper stratosphere.
Reason: Ozone holes increase the amount of UV radiation reaching the earth.
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