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The pollution due to oxides of sulphur gets enhanced due to the presence of:
A. particulate matter
B. ozone
C. hydrocarbons
D. hydrogen peroxide
Choose the most appropriate answer from the options given below:
A
A, C, D only
B
A, D only
C
A, B, D only
D
B, C, D only
Detailed Solution
Particulate matter in polluted air catalyses the oxidation of sulphur dioxide to sulphur trioxide: $2SO_2 + O_2 \rightarrow 2SO_3$
The reaction is also promoted by ozone and hydrogen peroxide:
$SO_2 + O_3 \rightarrow SO_3 + O_2$ ; $SO_2 + H_2O_2 \rightarrow H_2SO_4$
So A, B and D (particulate matter, ozone, hydrogen peroxide) enhance the pollution.