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?
- ABoth Statement II and Statement III are correct and both of them explain Statement ICorrect
- BBoth Statement II and Statement III are correct but only one of them explains Statement I
- COnly one of the Statements II and III is correct and that explains Statement I
- DNeither Statement II nor Statement III is correct
Explanation
Statement I: Activated carbon is indeed an excellent tool for removing pollutants from effluent streams and remediating industrial contaminants due to its unique properties.
Statement II: Correct and explains Statement I. Activated carbon has an extremely large surface area (500-3000 m²/g) due to its porous structure, and this high surface area combined with chemical properties gives it strong potential for adsorbing heavy metals and other contaminants.
Statement III: Correct and explains Statement I. Activated carbon can be synthesized from various environmental wastes with high carbon content such as coconut shells, wood chips, agricultural residues, and even sewage sludge, making it an environmentally sustainable solution.
Both statements II and III explain why activated carbon is such an attractive and effective tool for pollution control.

Related questions
More UPSC Prelims practice from the same subject and topic.
- Prelims 2025GS1science-and-technology
In the context of electric vehicle batteries, consider the following elements : I. Cobalt II. Graphite III. Lithium IV. Nickel How many of the above usually make up battery cathodes?
- Prelims 2025GS1science-and-technology
Consider the following statements : Statement I: Some rare earth elements are used in the manufacture of flat television screens and computer monitors. Statement II : Some rare earth elements have pho…
- Prelims 2025GS1science-and-technology
With reference to 'Direct Air Capture', an emerging technology, which of the following statements is/are correct? I. It can be used as a way of carbon sequestration. II. It can be a valuable approach …
- Prelims 2025GS1science-and-technology
Consider the following types of vehicles : I. Full battery electric vehicles II. Hydrogen fuel cell vehicles III. Fuel cell-electric hybrid vehicles How many of the above are considered as alternative…
- Prelims 2025GS1science-and-technology
With reference to Unmanned Aerial Vehicles (UAVs), consider the following statements : I. All types of UAVs can do vertical landing. II. All types of UAVs can do automated hovering. III. All types of …
- Prelims 2025GS1science-and-technology
Consider the following substances: I. Ethanol II. Nitroglycerine III. Urea Coal gasification technology can be used in the production of how many of them?