Q. Given below are two statements: Statement I: In a scrubber the exhaust from the thermal plant is passed through the electric wires to charge the dust particles. Statement II: Particulate matter (PM 2.5) can not be removed by scrubber but can be removed by an electrostatic precipitator. In the light of the above statements, choose the most appropriate answer from the options given below.
A) Statement I is incorrect but Statement II is correct
B) Both Statement I and Statement II are correct
C) Both statement I and statement II are incorrect
D) Statement I is correct but Statement II is incorrect
Explanation
[Solution] Charging dust particles with electric wires happens in an electrostatic precipitator, not a scrubber (I incorrect). Per the source key, Statement II is also taken as incorrect (ESPs remove about 99% of particulate matter but fine PM 2.5 is hard to remove fully). Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.