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Question

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 metal into environment
3. They may release sulphur dioxide as a pollutant.

Select the correct answer using the code given below.

(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3

Answer:

C

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Explanation:

Copper smelting plants are a cause for concern due to the following reasons:

The copper slag produced during the smelting process can contain heavy metals, such as lead and arsenic, which can leach into the environment if not properly managed. This can lead to soil and water pollution, posing a risk to human health and ecosystems.

Copper smelting plants often release sulfur dioxide (SO2) as a byproduct of the smelting process. SO2 is a harmful air pollutant that contributes to air pollution and can have adverse effects on human health, including respiratory issues and the formation of acid rain.

Statement 1 is not correct because lethal quantities of carbon monoxide (CO) are not typically released during copper smelting processes.

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