Explain how the oxides of sulphur pollute the atomospheric air? Give i

1.	Explain how the oxides of sulphur pollute the atomospheric air? Give its harmful effects
Answer» Solution : (i) SULPHUR dioxide and sulphur trioxide are produced by burning sulphur CONTAINING fossil fuels and by ROASTING of sulphide ores. (ii) `SO_(2)` is a poisonous gas for both animals and plants.`SO_(2)`causes eye irritation, coughing and respiratory diseases like asthma, bronchitis. (III)`SO_(2)`is oxidised to more harmful `SO_(3)`, gas in the presence of PARTICULATE matter present in the polluted AIR: `2SO_(2)overset(Pärticulate )to2SO_(3)` combines with atmospheric water vapour to form H,SO, which comes down along with rain in the form of acid rain: `SO_(3)+H_(2)OtoH_(2)SO_(4)`, (iv) Acid rain causes stone leprosy, affect aquatic ecosystem, corrode water pipes and causes respiratory ailment in humans and animals.

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