Loading...
UPSC 2025: 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
(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
Attempt This Question
Not attemptedCorrect Answer: (a) Both Statement II and Statement III are correct and both of them explain Statement I
Activated carbon is widely used for treating industrial effluents because its very high specific surface area and porous structure enable strong adsorption of heavy-metal ions and other pollutants (Statement II). In addition, it can be produced cheaply from a variety of biomass/industrial wastes that are rich in carbon, which makes the material an ‘attractive’ option for remediation (Statement III). Thus Statements II and III are both correct and together give the reasons that justify Statement I. ([pubs.rsc.org](https://pubs.rsc.org/en/content/articlehtml/2023/ra/d2ra07911a?utm_source=openai))
Related UPSC Questions
More from Pollution & Waste Management
2024moderate
Consider the following statements: Statement-I: Many chewing gums found in the market are considered a source of environmental pollution. Statement-
2023moderate
Consider the following statements regarding mercury pollution: 1. Gold mining activity is a source of mercury pollution in the world. 2. Coal-based th
2023moderate
With reference to coal-based thermal power plants in India, consider the following statements: 1. None of them uses seawater. 2. None of them is set u
Related Environment & Ecology Topics
2025Climate Change & Greenhouse Gases
Consider the following statements: Statement I: Studies indicate that carbon dioxide emissions from cement industry account for more than 5% of global
2025International Environmental Treaties & Summits
Consider the following statements: Statement I: At the 28th United Nations Climate Change Conference (COP28), India refrained from signing the 'Declar
Frequently Asked Questions
What is the correct answer to this UPSC 2025 Environment & Ecology question?▼
The correct answer is option (a): Both Statement II and Statement III are correct and both of them explain Statement I. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Pollution & Waste Management question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2025, GS Paper 1, as Question 50. It falls under Environment & Ecology > Pollution & Waste Management.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Pollution & Waste Management?▼
UPSC has asked 38 questions from Pollution & Waste Management (under Environment & Ecology) across multiple years. Visit the topic page to see the full list and year-wise trends.