Civil Engineering MCQAE Level Civil Engineering
Find the secondary air pollutant among NO, SO₂, Soot, O₃.
Environmental EngineeringEnvironmental EngineeringMEDIUM
Choose the correct answer
A
NO
B
SO₂
C
Soot
D
O₃
Correct Answer
A. NO
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Per the official WBPSC key the marked answer is NO. (Conventionally O₃ is the secondary pollutant.)
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This MCQ belongs to WBPSC AE Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.