Environmental Chemistry is a topic from the Environmental Chemistry chapter of Class 11 Chemistry, and it is part of the Chemistry section of the MHT CET for candidates who are preparing for the PCM (Physics, Chemistry, and Mathematics).
The key topics covered in Environmental Chemistry PYQs are:
- Principles of green chemistry and atom economy
- Green solvents
- Depletion of the ozone layer
- Water purification and DDT substitutes
- Intensive properties and state functions
Practising Environmental Chemistry MHT CET PYQ helps candidates to understand question pattern, improve calculation speed, and identify concepts which were asked in previous exams.
Based on chapter-wise analysis of the MHT CET Chemistry paper, you can get less than 1 mark per paper by covering Environmental Chemistry. The chapter recorded 21 questions across the 80 shifts in the data, and 14 of them came in the 2025 and 2026 papers, where it contributed about 0.8% per shift.
MHT CET Environmental Chemistry Chapter: Question Count, Marks and Weightage:
| 0.26 Average questions per shift (2018-2026) | 14 Questions in the 2025 and 2026 papers (33 shifts) |
| 21 Questions in the PDF (2019-2026) | 0.5% Estimated Chemistry paper weightage (0.8% in 2025-2026) |
The PDF holds 21 questions from MHT CET 2026 to 2019, newest first, each with its exam date and shift. Options are as printed and answer keys are not included.
Environmental Chemistry PYQ Statistics (2022-2026)
The table below shows the number of questions asked in MHT CET Environmental Chemistry PYQs. Every shift has 50 Chemistry questions, so the last column is the average per shift divided by 50.
| Year | Total Questions (across shifts) | Shifts in the Data | Average per Shift | Weightage (out of 50 Chemistry Qs) |
|---|---|---|---|---|
| 2026 | 2 | 16 | 0.12 | 0.2% |
| 2025 | 12 | 17 | 0.71 | 1.4% |
| 2024 | 5 | 18 | 0.28 | 0.6% |
| 2023 | 1 | 12 | 0.08 | 0.2% |
| 2022 | 0 | 1 | 0.00 | 0.0% |
The 2018 to 2021 papers in the PDF add 1 more questions: 2021 had none, 2020 had none, 2019 had 1, 2018 had none.
MHT CET Environmental Chemistry Important Questions: Based on the Last 5 Years
The major types of questions asked from Environmental Chemistry in MHT CET cover the following topics:
| Topic | Questions in the PDF | Questions in 2022-2026 | Average per Shift (2022-2026) |
|---|---|---|---|
| Green chemistry principles, atom economy and green solvents | 11 | 11 | 0.17 |
| Ozone layer, DDT and water pollution | 5 | 4 | 0.06 |
| Intensive properties, colloids and nanostructures | 5 | 5 | 0.08 |
Pair PYQs with Other Study Material for MHT CET 2027
Click on the link to practise problems and time management skills:
| Resource | Link |
|---|---|
| MHT CET Sample Paper | Check Here |
| MHT CET Mock Test | Check Here |
Question Style in MHT CET Environmental Chemistry PYQs
Every question in this PDF is a single-correct MCQ. About half are theory questions on green chemistry and the rest cover ozone depletion and properties of systems.
| Question Style | What it Tests |
|---|---|
| Atom economy | The percentage atom economy when the formula weight of the product is 65 u or 70 u and the sum of the formula weights of the reactants is given |
| Green chemistry | The green alternative for dry cleaning solvents, the principle that avoids protection and deprotection of groups, and the principle that favours chemicals made from plant sources |
| Ozone layer | The gases that deplete the ozone layer, and the role of nitric oxide in the conversion of oxygen to ozone |
| Water and pesticides | What is used instead of DDT, and what is effectively used to remove E. coli bacteria from water |
| Properties and colloids | An intensive property that is also a state function, an example of a multimolecular colloid, and a two-dimensional nanostructure |
How to Use the Environmental Chemistry PYQ PDF for MHT CET
- Start with the 2025 and 2026 papers first, because they hold 14 of the 21 questions.
- Learn the 12 principles of green chemistry with one example each, since half the questions ask for a principle or a green solvent.
- For atom economy, divide the formula weight of the product by the sum of the formula weights of the reactants and multiply by 100.
- Solve year-wise PYQs by timing yourself, as time management is crucial.
- Re-attempt only the questions you got wrong, and note which formula or step you missed.
Video: Environmental Chemistry PYQs and MCQs
Source: V Maharashtra Boards + MHT CET
Environmental Chemistry PYQ for MHT CET Chemistry FAQs
Ques. How many questions come from Environmental Chemistry every year?
Ans. In this PDF, the questions are 2 from 2026, 12 from 2025, 5 from 2024, 1 from 2023 and 1 from 2019. In 2025 and 2026 together the chapter had 14 questions across 33 shifts, about 0.42 per shift.
Ques. Which topics are asked most frequently in MHT CET Environmental Chemistry?
Ans. Green chemistry principles, atom economy and green solvents is the largest group with 11 of the 21 questions, about 52%.
Ques. What kind of questions are asked from Environmental Chemistry?
Ans. Single-correct MCQs, mostly theory. Common ones ask for a green chemistry principle or solvent, the gas that depletes the ozone layer, or the percentage atom economy of a reaction.
Ques. What is the best way to practise Environmental Chemistry PYQs?
Ans. First solve the 2025 and 2026 questions completely, then the older ones, and finally re-attempt the questions you got wrong.
Ques. Can I score full marks from Environmental Chemistry?
Ans. In 2025 and 2026 together the chapter had 14 questions across 33 shifts. Learning the principles of green chemistry and the atom economy formula is enough to secure it. Each Chemistry question in MHT CET is worth 1 mark.
Ques. Does the Environmental Chemistry PYQ PDF include solutions?
Ans. No. The PDF contains the questions with their exam date and shift, without answer keys or solutions.
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