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Oxides of Sulphur

How is SO2 ...

Question

How is $S O_{2}$ an air pollutant?

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Solution

Sulphur dioxide is an air pollutant.
On dissolution in rain water, $S O_{2}$ produces acid rain.
$S O_{2} + 0.5 O_{2} + H_{2} O s o o t - ---- \to p a r t i c l e s H_{2} S O_{4}$
Acid rain contains sulphuric acid and nitric acid.

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Oxides of Sulphur

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