MEDIUMMCQ SINGLEJEE Mains ChemistryInorganic ChemistryEnvironmental ChemistryAtmosphere Pollution

Which of the following pollutant(s)catalyse(s) the oxidation of sulphur dioxide to sulphur trioxide?

A.Particulate matter✓ Correct

B.CO2

C.NO2

D.All of the above

Explanation

Uncatalysed oxidation of SO2 is slow. However, the presence of particulate matter in polluted air catalyses the oxidation of SO2 to SO3. 2 2 3 2SO (g)+O (g) 2SO (g) ->

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