Air Pollution: Causes, Effects and Control · NCERT Biology

A scrubber is specifically used in industries to remove which of the following gaseous pollutants?

  1. Carbon monoxide
  2. Nitrogen gas
  3. Sulfur dioxide
  4. Methane
Show answer and explanation

Correct answer: Sulfur dioxide

In a scrubber, the exhaust is passed through a spray of water or lime. This setup is highly effective at removing gases like sulfur dioxide ($SO_2$) from industrial emissions.

Difficulty: Medium Question 3 of 20

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