Isomerism: NEET Chemistry Questions and PYQs
Isomerism is a chapter of NEET Chemistry, in the Organic Chemistry unit. YoExam has 850+ practice questions on it, including 22 previous year questions from NEET and AIPMT papers from 1988 to 2025, and every question comes with the answer and a full explanation.
Topics covered in Isomerism
Each topic can be practised on its own, so you can drill the exact part of the chapter you are weakest in.
- Overview, Classification and Isomer Counting
- Chain Isomerism
- Position Isomerism
- Functional Group Isomerism
- Metamerism
- Tautomerism and Ring–Chain Isomerism
- Geometrical (cis–trans) Isomerism
- E/Z Nomenclature and CIP Priority
- Optical Isomerism: Chirality, Enantiomers and Optical Activity
- Optical Isomerism: R/S, Diastereomers and Meso
Question types
Pick one type to focus, or mix them all. Counts as of 24 September 2026.
| Question type | Questions |
|---|---|
| Topic Wise | 650 |
| Previous Year Questions | 22 |
| NCERT Based Questions | 100 |
| Reactions & Conversions | 50 |
| ABCD Questions | 30 |
| Total | 852 |
Isomerism previous year questions
22 questions on Isomerism come from past NEET and AIPMT papers from 1988 to 2025, across 20 different years. Each one shows the paper it came from, so you can see how the chapter has been examined over time. The NEET PYQ chapter-wise page compares every chapter.
How practice works
- Choose a question type or a topic, then answer at your own pace.
- Check each answer to see whether it is right, the correct option and the full explanation.
- Stop whenever you like and resume from the same question later.
- At the end, see your accuracy, time, and a breakdown by question type and difficulty.
Frequently asked questions
How many NEET questions are there on Isomerism?
YoExam has 850+ practice questions on Isomerism, including 22 previous year questions from NEET and AIPMT papers from 1988 to 2025. Every question comes with the correct answer and a full explanation.
Are there NEET PYQs for Isomerism?
Yes. 22 questions on Isomerism come from past NEET and AIPMT papers from 1988 to 2025, across 20 different years. You can practise them on their own by choosing Previous Year Questions for this chapter.
Is Isomerism free to practise on YoExam?
Isomerism is part of YoExam Pro and Elite. The first chapter of every unit is free, so you can try the questions and explanations before paying. YoExam Pro is ₹599 for 12 months, as a one-time payment.
What types of questions are there for Isomerism?
You can practise Isomerism as Topic Wise, Previous Year Questions, NCERT Based Questions, Reactions & Conversions and ABCD Questions, or mix every type together in one session.
Which topics does Isomerism cover?
10 topics: Overview, Classification and Isomer Counting; Chain Isomerism; Position Isomerism; Functional Group Isomerism; Metamerism; Tautomerism and Ring–Chain Isomerism; Geometrical (cis–trans) Isomerism; E/Z Nomenclature and CIP Priority; Optical Isomerism: Chirality, Enantiomers and Optical Activity; Optical Isomerism: R/S, Diastereomers and Meso. Each one can be practised on its own.
More chapters in Organic Chemistry
- IUPAC: 850+ questions, 22 PYQs
- General Organic Chemistry: 820+ questions, 60+ PYQs
- Hydrocarbons: 1,100+ questions, 90+ PYQs
- Haloalkanes and Haloarenes: 1,000+ questions, 60+ PYQs
- Alcohols, Phenols and Ethers: 840 questions, 70+ PYQs
- Aldehydes, Ketones and Carboxylic Acids: 1,200+ questions, 110+ PYQs
- Amines: 1,000+ questions, 50+ PYQs
- Biomolecules: 1,000+ questions, 110+ PYQs
See every chapter on the NEET Chemistry page.