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  9. Q46

OPSC OCS 2023 · Question 46 of 97

Consider the following: 1. Carbon dioxide 2.Oxides of Nitrogen 3.Oxides of Sulphur Which of the above is/are the emission/emissions from coal combustion at thermal power plants?

Environment

  1. A1 only
  2. B2 and 3 only
  3. C1 and 3 only
  4. D1.2 and 3Correct

Answer: D. 1.2 and 3

Explanation

Coal-based thermal power stations contribute over half sulphur dioxide (SO2), 30% oxides of nitrogen (NOx), about 20% particulate matter (PM), etc. Coal is the primary fuel for electricity generation in India and its usage is continuously increasing to meet the energy demands of…

Source: OPSC OCS Prelims 2023 GS Paper-I; answers per Apti Plus unofficial key

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