List of top Environmental Engineering Questions on Air, water and soil pollution: Control asked in GATE CE

Aeration is employed as a treatment option for the removal of several pollutants from contaminated water. Identify the pollutant(s), where aeration is employed as part of their removal:
What is the CORRECT match between the air pollutants and treatment techniques given in the table
Air PollutantsTreatment techniques
PNO2iFlaring
QSO2iiCyclonic separator
RCOiiiLime scrubbing
SParticlesivNH3 injection