Q. In a coal fired power plant electrostatic precipitators are installed to control emission of
A) NOₓ
B) SPM
C) CO
D) SO₂
Explanation
[Solution from source] An electrostatic precipitator charges dust and ash particles and collects them on oppositely charged plates, removing over 99% of suspended particulate matter (SPM). It cannot remove gases such as NOₓ, CO or SO₂, which need scrubbers or catalytic converters. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.