Questions
21
across 8 papers
Share of subject
5.3%
of 398 Chemistry Qs
Weightage rank
#5
of 31 chapters
Difficulty
7 easy · 11 medium · 3 hard
Organic Chemistry: Some Basic Principles and Techniques contributed 21 of the 398 NEET Chemistry questions between 2020 and 2026 (Re-NEET 2026 included). That is 5.3% of the subject and makes it the #5 chapter out of 31 by weightage — roughly 2.6 questions per paper, peaking at 4 in NEET 2024.
Of the 21 questions tagged for difficulty, 33% were easy, 53% medium and 14% hard — a fairly balanced mix of easy and moderate questions.
It has been asked more often lately: 3 questions per paper across NEET 2025, NEET 2026 and Re-NEET 2026, against 2 in 2020–2022.
The single most-tested topic is Nomenclature of Organic Compounds (I.U.P.A.C System of Nomenclature) — 4 questions across 4 papers.
13 topics tagged under Organic Chemistry: Some Basic Principles and Techniques. Numbers show how many questions each topic had in each paper; E / M / H are the easy, medium and hard counts.
| Topic | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | Re | Total | E | M | H |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Nomenclature of Organic Compounds (I.U.P.A.C System of Nomenclature) | – | 1 | 1 | – | 1 | – | 1 | – | 4 | 1 | 2 | 1 |
| Qualitative Analysis of Organic Compounds (Test for Nitrogen, Sulphur and Halogens (Lassaigne'…) | – | – | – | 1 | – | 1 | 1 | – | 3 | 1 | 2 | – |
| Hyperconjugation (Hyperconjugation and its Applications) | – | – | – | – | – | 1 | – | 1 | 2 | – | 2 | – |
| Reaction Intermediates (Carbocation) | 1 | – | – | – | 1 | – | – | – | 2 | 1 | 1 | – |
| Types of Isomerism (Structural Isomerism, Stereoisomerism) | – | 1 | – | – | – | – | 1 | – | 2 | 1 | 1 | – |
| Aromaticity (Non-Benzenoid System) | – | – | – | 1 | – | – | – | – | 1 | – | 1 | – |
| General Introduction (Hybridization in Carbon Compounds) | – | – | – | – | 1 | – | – | – | 1 | – | 1 | – |
| Methods of Purification of Organic Compounds (Chromatography) | 1 | – | – | – | – | – | – | – | 1 | 1 | – | – |
| Methods of Purification of Organic Compounds (Distillation) | – | – | – | – | – | 1 | – | – | 1 | – | – | 1 |
| Methods of Purification of Organic Compounds (Distillation- Fractional Distillation) | – | – | – | – | – | – | 1 | – | 1 | – | 1 | – |
| Methods of Purification of Organic Compounds (Sublimationr) | – | – | – | – | 1 | – | – | – | 1 | 1 | – | – |
| Qualitative Analysis of Organic Compounds (Estimation of Nitrogen (Kjeldahl's Method)) | – | – | 1 | – | – | – | – | – | 1 | – | – | 1 |
| Stereoisomerism (Geometrical Isomerism) | – | – | – | – | – | 1 | – | – | 1 | 1 | – | – |
In the NEET papers from 2020 to 2026 (including Re-NEET 2026), 21 Chemistry questions came from Organic Chemistry: Some Basic Principles and Techniques — 5.3% of the subject, or about 2.6 per paper.
By past weightage it ranks #5 of 31 Chemistry chapters, so it is one of the five highest-weightage Chemistry chapters, with 21 questions over 2020–2026.
The most-tested topics are Nomenclature of Organic Compounds (I.U.P.A.C System of Nomenclature) (4), Qualitative Analysis of Organic Compounds (Test for Nitrogen, Sulphur and… (3) and Hyperconjugation (Hyperconjugation and its Applications) (2). The topic table above lists every topic with its count in each paper.
Of the 21 difficulty-tagged questions, 33% were easy, 53% medium and 14% hard.
Nomenclature of Organic Compounds (I.U.P.A.C System of Nomenclature), Qualitative Analysis of Organic Compounds (Test for Nitrogen, Sulphur and…, Hyperconjugation (Hyperconjugation and its Applications) and Types of Isomerism (Structural Isomerism, Stereoisomerism) and more were asked in the 2026 papers.
Edurack has chapter-wise NEET previous-year questions for Organic Chemistry: Some Basic Principles and Techniques. Use the practice button on this page to open the set, attempt questions and check your answers.
Counts come from Edurack's tagged set of NEET papers 2020–2026 (including Re-NEET 2026), mapped to NCERT chapters and topics. Use them as a trend guide — past frequency doesn't guarantee what a future paper will ask.