Jump to a section

Chemistry - Environmental Chemistry

Practise 16 BITSAT previous year questions on Environmental Chemistry, compiled from papers spanning 2009 to 2024. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty BITSAT tests.

Environmental Chemistry has been asked in 10 of the 16 years of BITSAT papers analysed (2009–2024), with 16 questions in all. 94% of them were easy, 0% moderate and 6% tough. Most of its questions came from 2010, with 3 questions that year. In the last three years (2022–2024) it had 3 questions across 3 papers, about 1 per paper.

The chapter's 4 topics are not weighted equally: Air Pollution (9 questions, 56%), Water Pollution (3 questions, 19%), and Environmental Pollution and pollutants (2 questions, 13%) have been asked the most. Air Pollution has also led over the last five years, with 3 questions. Environmental Pollution and pollutants has produced the most tough questions (1).

  1. 1Dinitrogen is a robust compound, but reacts at high altitude to form oxides. The oxide of nitrogen that can damage plant leaves and retard p2024 (Memory Based Paper 1)Environmental Pollution and pollutants
  2. 2The photochemical smog does not generally contain:2023 (Memory Based Paper 1)Air Pollution
  3. 3Photochemical smog formed in congested metropolitan cities mainly consists of2023 (Memory Based Paper 2)Air Pollution
  4. 4Biochemical oxygen demand(BOD) value can be a measure of water pollution caused by the organic matter. Which of the following statements is 2021Water Pollution
  5. 5The greenhouse effect is because of the2020Air Pollution
  6. 6Which of the following pollutants is main product of automobiles exhaust?2015Air Pollution
  7. 7The disease caused the high concentration of hydrocarbon pollutants in atmosphere is/are2015Air Pollution
  8. 8When rain is accompanied by a thunderstorm, the collected rain water will have a value:2014Air Pollution
  9. 9The greenhouse effect is because of the2013Air Pollution
  10. 10Formation of ozone in the upper atmosphere from oxygen takes place by the action of2012Air Pollution
  11. 11Minamata disease is due to pollution of2010Air Pollution
  12. 12Phosphate pollution is caused by:2010Land Pollution
  13. 13Eutrophication causes reduction in2010Water Pollution
  14. 14The statement which is not correct about control of particulate pollution is:2009Environmental Pollution and pollutants
  15. 15Chief source of soil and water pollution is:2009Water Pollution
  16. 16The false statement among the followings:2009Land Pollution

Frequently Asked Questions

1.How many questions are available for Environmental Chemistry?

This chapter includes 16 questions compiled from BITSAT papers spanning 2009 to 2024.

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

These are BITSAT questions specifically for the Environmental Chemistry chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

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

Environmental Chemistry has appeared in 10 of the 16 years of BITSAT papers covered here, with 16 questions across 11 papers - about one per paper it appears in.

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

Of the 16 questions analysed for this chapter, 94% are easy, 0% moderate and 6% tough. 2010 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 - 9 questions (56%)
  • Water Pollution - 3 questions (19%)
  • Environmental Pollution and pollutants - 2 questions (13%)
  • Environmental Pollution and pollutants has produced the most tough questions (1).
6.Is Environmental Chemistry's weightage in BITSAT going up or down?

Across all 11 papers analysed, Environmental Chemistry has averaged about 1.5 questions per paper. In the last three years (2022–2024), that average has fallen, at about 1.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.