Multiple choice

Which of the following are some important pollutants released by the steel industry in India?

  1. Oxides of sulphur
  2. Oxides of nitrogen
  3. Carbon monoxide
  4. Carbon dioxide

Select the correct answer from the following options.

  1. 1, 3 and 4 only

  2. 2 and 3 only

  3. 1 and 4 only

  4. 1, 2, 3 and 4

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In a steel furnace, coke reacts with iron ore, releasing iron and generating CO and CO2 gases. Due to use of coal, pollutants such as SOx, and NOx are released, thus all are correct options.