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give equation of formation of acid rain with oxides of sulphur....
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give equation of formation of acid rain with oxides of sulphur....
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Both sulfur dioxide and nitrogen dioxide are acidic oxides and react with water to form acids.
Sulfur dioxide reacts with water to form sulfurous acid.
SO2(g) + H2O(l) -> H2SO3(aq)
Substances in the upper atmosphere then catalyse the reaction between sulfurous acid and oxygen to form sulfuric acid.
2H2SO3(aq) + O2(g) -> 2H2SO4(aq)
Similarly, nitrogen dioxide reacts with water to form a mixture of nitric acid and nitrous acid.
2NO2(g) + H2O(l) -> HNO3(aq) + HNO2(aq)
Substances in the atmosphere then catalyse the reaction between nitrous acid and oxygen causing the formation of more nitric acid.
2HNO2(aq) + O2(g) -> 2HNO3(aq)
Both sulfuric acid and nitric acid are soluble in water and are the major acids present in acid rain.