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Standard IX
Chemistry
Chlorofluorocarbon
CFCs upon rea...
Question
CFCs upon reaching the stratosphere decompose into nascent ___ that disturbs oxygen-ozone cycle.
A
C
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B
F
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C
Cl
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D
O
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Q.
Explain the relationship between CFCs and ozone in the stratosphere.
Q.
Statement 1 (S1): Ozone generates heat in the stratosphere by absorbing ultraviolet radiation.
Statement 2 (S2): UV rays decompose ozone molecule into oxygen molecule and oxygen atom.
Q.
If
C
C
l
3
F
(CFCs) is present in the stratosphere, it will react with which of the following:
A) Ozone B)
N
2
C)
C
O
2
Q.
Assertion :The main reason of ozone layer depletion is believed to be the release of chlorofluorocarbon compounds known as freons. Reason: CFCs are transporting agents for continuously generating chlorine radicals into the stratosphere.
Q.
when ozone get decomposed it splits into o
2 +
[o] that is oxygen and nascent oxygen so when this nascent oxygen get combine with carbon monoxide then it forms co
2
so does that co
2
is useful for plants for photosynthesis?
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