(A) Ozone is formed in the stratosphere by the action of $UV$ radiation on dioxygen molecules. The $UV$ radiation splits the $O_2$ molecule into two n

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(A) Ozone is formed in the stratosphere by the action of $UV$ radiation on dioxygen molecules. The $UV$ radiation splits the $O_2$ molecule into two nascent oxygen atoms. These nascent oxygen atoms then react with other $O_2$ molecules to form ozone $(O_3)$. The reactions are as follows:$O_2 \xrightarrow[\lambda $O_2 + O \rightarrow O_3 \ (\text{Ozone})$

Class 11 Chemistry Environmental Chemistry Environmental Study

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Ozone is formed in the upper atmosphere by a photochemical reaction with $O_2$ in the presence of

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A
Ultraviolet solar radiation
B
Infrared radiation
C
Visible light
D
Microwave radiation

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Environmental Chemistry

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London smog is composed of which of the following?

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Match List-$I$ with List-$II$.

List-$I$ List-$II$

$A$. Nitrogen oxides in air $I$. Eutrophication

$B$. Methane in air $II$. $pH$ of rain water becomes $5.6$

$C$. Carbon dioxide $III$. Global warming

$D$. Phosphate fertilisers in water $IV$. Acid rain

Choose the correct answer from the options given below:

List-$I$	List-$II$
$A$. Nitrogen oxides in air	$I$. Eutrophication
$B$. Methane in air	$II$. $pH$ of rain water becomes $5.6$
$C$. Carbon dioxide	$III$. Global warming
$D$. Phosphate fertilisers in water	$IV$. Acid rain