Question

A pollution control device which can remove gases like $S{O}_2$ are known as

• A. Electrostatic precipitator
• B. Scrubber
• C. Chimneys
• D. Both A and B

Answer 1

The correct option is B Scrubber

• A pollution control device which can remove gases like SO${}_2$ is known as a scrubber. It removes most of the sulfur oxides from the smokestack exhaust of a power plant when sulfur dioxide enters a scrubber.
• In the scrubber, there is a water spray that produces a cloud of fine water droplets. The water is mixed with crushed limestone, which reacts with the sulfur and pulls it out of the exhaust.

So, the correct answer is 'Scrubber'.