Attempt this previous-year question. The correct option stays hidden until you choose.
Why is there a concern about copper smelting plants?
1. They may release lethal quantities of carbon monoxide into environment.
2. The copper slag can cause the leaching of some heavy metals into environment.
3. They may release sulphur dioxide as a pollutant.
Select the correct answer using the codes given below.
Pick an option to check yourself.
• Correct Answer: B
• Copper slag contains arsenic, cadmium, lead, and mercury that leach into groundwater through weathering.
• Sulphide ores release SO2 during smelting; CO emissions occur but not in lethal quantities.
Attempt Prelims MCQs or open Mains questions by paper — then continue the same bank inside the app with visual decks.
GyanGram