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If a Pollution Under Control (PUC) Certificate is to be issued for a petrol-driven 4-wheeler, which of the following needs to be evaluated in the respective exhaust gas? (i) Hydro Carbon (HC) (ii) Carbon Monoxide (CO) (iii) Ammonia (NH3) (iv) Hydrogen disulphide (H2S)
Correct Answer: (a)
Official keyThis question appeared in the GPSC Prelims 2025 examination (GS). It is Question 180 out of 200 questions in this paper.
This question was part of the GPSC Prelims 2025 (GS). The GPSC Prelims examination tests candidates on general studies, current affairs, and aptitude through multiple-choice questions.
Practice previous year questions from all GPSC Prelims papers and compare patterns with UPSC Prelims PYQ to identify overlapping topics.