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Chemistry - Environmental Chemistry

Practise 19 NEET previous year questions on Environmental Chemistry, compiled from papers spanning 2004 to 2023. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty NEET tests.

Environmental Chemistry has been asked in 13 of the 39 years of NEET papers analysed (1988–2026), with 19 questions in all. 100% of them were easy, 0% moderate and 0% tough. Most of its questions came from 2008, with 3 questions that year. In the last three years (2024–2026) it had 0 questions across 13 papers, about 0 per paper.

The chapter's 3 topics are not weighted equally: Air Pollution (12 questions, 63%), Water Pollution (4 questions, 21%), and Control of environmental pollution (3 questions, 16%) have been asked the most. Air Pollution has also led over the last five years, with 2 questions.

  1. 1Given below are two statements : Statement I : The nutrient deficient water bodies lead to eutrophication. Statement II : Eutrophication lea2023 (All India)Water Pollution
  2. 2Which statement is not true about photochemical smog?2023 (Manipur)Air Pollution
  3. 3The pollution due to oxides of sulphur gets enhanced due to the presence of: (a) particulate matter (b) ozone (c) hydrocarbons (d) hydrogen 2022 (Phase 1)Air Pollution
  4. 4Match List-I with List-II: Choose the correct answer from the options given below:2022 (Phase 2)Water Pollution
  5. 5Match List - I with List - II. List-I List-II (a) 2 SO 2 g + O 2 g 2 SO 3 g (i) Acid rain (b) HOCl g hv OH + Cl (ii) Smog (c) CaCO 3 + H 2 S2021Air Pollution
  6. 6Which of the following is not correct about carbon monoxide?2020 (Phase 1)Air Pollution
  7. 7Which of the following statement is NOT true about acid rain?2020 (Phase 2)Air Pollution
  8. 8Among the following, the one that is not a greenhouse gas is:2019 (All India)Air Pollution
  9. 9The liquified gas that is used in dry cleaning along with a suitable detergent is2019 (Odisha)Water Pollution
  10. 10Which oxide of nitrogen is not a common pollutant introduced into the atmosphere both due to natural and human activity?2018Air Pollution
  11. 11Which of the following is a sink for CO ?2017Air Pollution
  12. 12Which one of the following is not a common component of Photochemical Smog?2014Air Pollution
  13. 13Which one of following statements is not true?2013 (Karnataka)Air Pollution
  14. 14Which one of the following statements regarding photochemical smog is not correct?2012 (Screening)Air Pollution
  15. 15Which one of the following statements is not true?2011 (Screening)Water Pollution
  16. 16Green chemistry means such reactions which2008 (Mains)Control of environmental pollution
  17. 17Green chemistry means such reactions which2008 (Screening)Control of environmental pollution
  18. 18On the basis of the following \(E^{ }\) values, the strongest oxidizing agent is :- \( {aligned} & { [ {Fe}( {CN})_6 ]^{4-} [ {Fe}( {CN})_6 2008 (Screening)Control of environmental pollution
  19. 19Which one of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?2004Air Pollution

Frequently Asked Questions

1.How many questions are available for Environmental Chemistry?

This chapter includes 19 questions compiled from NEET papers spanning 2004 to 2023.

2.Are these questions only from NEET, or from other exams too?

These are NEET questions specifically for the Environmental Chemistry chapter. Questions from other exams like AIIMS or JIPMER are organised separately under their respective exam sections.

3.Is Environmental Chemistry an important chapter for NEET Chemistry?

Environmental Chemistry has appeared in 13 of the 25 years of NEET papers covered here, with 19 questions across 18 papers - about one per paper it appears in.

4.What is the difficulty level of Environmental Chemistry questions in NEET?

Of the 19 questions analysed for this chapter, 100% are easy, 0% moderate and 0% tough. 2008 had the most, with 3 questions.

5.Which topics in Environmental Chemistry should I focus on?

These topics have carried the most weightage in Environmental Chemistry:

  • Air Pollution - 12 questions (63%)
  • Water Pollution - 4 questions (21%)
  • Control of environmental pollution - 3 questions (16%)
6.Is Environmental Chemistry's weightage in NEET going up or down?

Across all 18 papers analysed, Environmental Chemistry has averaged about 1.1 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.