Chemistry - Environmental Chemistry
Practise 5 KCET previous year questions on Environmental Chemistry, compiled from papers spanning 2017 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 KCET tests.
Environmental Chemistry has been asked in 4 of the 20 years of KCET papers analysed (2007–2026), with 5 questions in all. 80% of them were easy, 20% moderate and 0% tough. Most of its questions came from 2020, with 2 questions that year. In the last three years (2024–2026) it had 0 questions across 3 papers, about 0 per paper.
The chapter's 2 topics are not weighted equally: Air Pollution (4 questions, 80%) and Water Pollution (1 question, 20%) have been asked the most. Air Pollution has also led over the last five years, with 1 question.
- 1Which one of the following gases converts haemoglobin into carboxy haemoglobin?2023Air Pollution
- 2Prolonged exposure of chloroform in humans may cause damage to liver. It is due to the formation of the following compound.2020Air Pollution
- 3Which of the following is not a green house gas?2020Air Pollution
- 4Eutrophication causes2019Water Pollution
- 5Hydrogenation of vegetable oils in presence of finely divided Nickel as catalyst. The reaction is2017Air Pollution
Frequently Asked Questions
1.How many questions are available for Environmental Chemistry?
This chapter includes 5 questions compiled from KCET papers spanning 2017 to 2023.
2.Are these questions only from KCET, or from other exams too?
These are KCET 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 KCET Chemistry?
Environmental Chemistry has appeared in 4 of the 20 years of KCET papers covered here, with 5 questions across 4 papers - about one per paper it appears in.
4.What is the difficulty level of Environmental Chemistry questions in KCET?
Of the 5 questions analysed for this chapter, 80% are easy, 20% moderate and 0% tough. 2020 had the most, with 2 questions.
5.Which topics in Environmental Chemistry should I focus on?
These topics have carried the most weightage in Environmental Chemistry:
- Air Pollution - 4 questions (80%)
- Water Pollution - 1 question (20%)
6.Is Environmental Chemistry's weightage in KCET going up or down?
Across all 4 papers analysed, Environmental Chemistry has averaged about 1.3 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.