A) \[N{{O}_{2}}\] does not play any role in photochemical smog
B) \[S{{O}_{3}}\] is more harmful air polluntant than \[S{{O}_{2}}\]
C) \[S{{O}_{2}}\] dos not affect larynx (voice box)
D) NO is more toxic to living tissues than \[N{{O}_{2}}\]
Correct Answer: B
Solution :
[b] \[S{{O}_{3}}\] is more harmful pollutant than \[S{{O}_{2}}\].
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