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

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

Select the correct answer using the code given below:
Answer: 1, 2, 3 and 4
Notes: The steel industry in India releases several important pollutants. Let's analyze the options:

1. Oxides of sulphur: Released from smelting of sulphur-containing ores ✅ Correct
2. Oxides of nitrogen: Released from high temperature combustion processes ✅ Correct
3. Carbon monoxide: Released from incomplete combustion of coke in blast furnaces ✅ Correct
4. Carbon dioxide: Released from energy use and coal combustion ✅ Correct

Therefore, oxides of sulphur, oxides of nitrogen, carbon monoxide and carbon dioxide are all important pollutants released by the steel industry in India.

This question is part of UPSC Daily 20 MCQ Series Course on GKToday Android app.