UPSC 2024EnvironmentModerate

Consider the following statements : Statement I : Activated carbon is a good and an attractive tool to remove pollutants from effluent streams and to remediate contaminants from various industries. Statement II : Activated carbon exhibits a large surface area and a strong potential for adsorbing heavy metals. Statement III : Activated carbon can be easily synthesized from environmental wastes with high carbon content. Which one of the following is correct in respect of the above statements?

A
Both Statement II and Statement III are correct and both of them explain Statement I
Correct Answer
B
Both Statement II and Statement III are correct but only one of them explains Statement I
C
Only one of the Statements II and III is correct and that explains Statement I
D
Neither Statement II nor Statement III is correct

Explanation

Option (a) is correct because Statement II provides the scientific mechanism (high surface area/adsorption) and Statement III provides the economic feasibility (synthesis from waste), both of which directly justify why activated carbon is an "attractive tool" for remediation as stated in Statement I. Option (b) is the most tempting wrong choice, but it is incorrect because it fails to recognize that the "attractiveness" of an industrial tool depends on both its functional efficiency and its sustainable, low-cost production. The core concept tested is the physical properties, synthesis, and environmental applications of activated carbon in pollution control.

Environmental Pollution & RemediationWater Treatment TechnologiesActivated carbonAdsorptionHeavy metalsEffluent streamsEnvironmental wastes

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