JEE Main Some Basic Principles of Organic Chemistry: Weightage, Key Concepts and Study Plan
Some Basic Principles of Organic Chemistry in JEE Main: 136 questions across 2022–2026, rank #4 of 20 in Chemistry, gaining momentum. Year-wise data, key concepts and a study plan.
Edurack
October 21, 2026
Some Basic Principles of Organic Chemistry is one of the heaviest chapters in JEE Main Chemistry, and it is getting heavier: its share of the subject went from 4.2% in 2022–23 to 5.6% in 2024–26. Here is what five years of JEE Main questions say about it, and how to prepare.
At a glance
- 136 questions across 2022–2026, all shifts
- 4.6% of Chemistry over five years and 6.0% in 2024–2026
- Rank #4 of 20 Chemistry chapters by recent weight
- Momentum: Gaining
- Asked in 5 of 5 years; busiest year 2025 with 57 questions
- 26 questions in the 2026 papers
Year-wise questions
| Year | 2022 | 2023 | 2024 | 2025 | 2026 | Total |
|---|---|---|---|---|---|---|
| Questions | 22 | 23 | 8 | 57 | 26 | 136 |
How Some Basic Principles of Organic Chemistry compares inside Chemistry
| Rank | Chapter | Total Qs | 2024–26 share | Momentum |
|---|---|---|---|---|
| 2 | Organic Compounds Containing Oxygen | 223 | 7.5% | Fading |
| 3 | Redox Reactions and Electrochemistry | 161 | 6.8% | Stable |
| 4 | Some Basic Principles of Organic Chemistry | 136 | 6.0% | Gaining |
| 5 | Hydrocarbons | 166 | 5.9% | Stable |
| 6 | p-Block Elements | 163 | 5.8% | Stable |
Concepts that repeat
In our data no single concept dominates Some Basic Principles of Organic Chemistry. Its questions are spread across the syllabus, so work through every sub-topic rather than a short list.
What the syllabus covers
Hybridisation, functional groups, homologous series, isomerism, IUPAC nomenclature, bond fission, carbocations, carbanions, free radicals, inductive, electromeric, resonance and hyperconjugation effects, types of organic reactions.
A checklist to tick off:
- Hybridisation
- Functional groups
- Homologous series
- Isomerism
- IUPAC nomenclature
- Bond fission
- Carbocations
- Carbanions
- Free radicals
- Inductive
- Electromeric
- Resonance and hyperconjugation effects
- Types of organic reactions
What to focus on
IUPAC nomenclature, electronic effects (inductive, resonance, hyperconjugation), stability of intermediates and isomerism. This chapter is the foundation for every organic reaction.
A study plan for this chapter
Because it is gaining weight, move it up your list and give it extra practice. If you divide your Chemistry time in proportion to recent weightage, this chapter earns about 6% of it.
- Week 1: one careful pass through theory and solved examples.
- Week 2: chapter-wise PYQs in two sittings. Aim for accuracy first and speed second.
- Week 3: fix every error from your log and take a timed set of 25 mixed questions.
- Ongoing: revisit once a week and again before each mock test.
Keep reading
- The full ranking: JEE Main Chemistry chapter-wise weightage
- Next chapter by weight: Hydrocarbons
- A heavier neighbour: Redox Reactions and Electrochemistry
See Some Basic Principles of Organic Chemistry on the weightage page →
Frequently Asked Questions
How many questions has Some Basic Principles of Organic Chemistry had in JEE Main?
136 questions across 2022–2026, counting every shift: 2022: 22, 2023: 23, 2024: 8, 2025: 57, 2026: 26.
Is Some Basic Principles of Organic Chemistry important for JEE Main Chemistry?
It ranks #4 of 20 Chemistry chapters by recent weight, which puts it in tier 1 of 3 for preparation. Its momentum is labelled Gaining.
How should I start Some Basic Principles of Organic Chemistry?
IUPAC nomenclature, electronic effects (inductive, resonance, hyperconjugation), stability of intermediates and isomerism. Then solve chapter-wise previous-year questions.