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NEET 2027 Chemistry Chapter-Wise Weightage: Chemistry is often called the most scoring subject in NEET. This subject is considered shorter, more formula- and reaction-driven than biology's memorisation load, and less calculation-heavy than physics. But only if preparation time goes to the chapters that actually carry weightage year after year. This article provides chapter-wise weightage data for the five most recent years (2022–2026) to show how consistently it has carried marks rather than by textbook order. The question-count data for every chapter below comes directly from Careers360's NEET Chemistry chapter-wise weightage article — nothing has been added or estimated. Each chapter has been labelled Class 11 or Class 12.
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Chemistry chapter frequency can change from one year to the next. For example, Coordination Compounds drew just 1 question in 2022 and 6 in both 2025 and 2026. A trend that you would miss if you only looked at last year's paper. Five-year data show trends across five years and separate chapters that are reliably tested from others. For NEET 2027 preparation, that distinction should directly decide how revision time gets split: chapters with a consistently high weightage must be given more revision time, while chapters that spiked once and otherwise stayed quiet get covered thoroughly but don't need to dominate the study hours.
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Sorted by five-year average, highest first. The Class column reflects the editorial classification described above, not a Careers360-published label.
Chapter | Class | 2022 | 2023 | 2024 | 2025 | 2026 | 5-Yr Total | 5-Yr Avg |
Coordination Compounds | Class 12 | 1 | 2 | 6 | 5 | 6 | 20 | 4.0 |
Hydrocarbons | Class 11 | 3 | 1 | 5 | 4 | 6 | 19 | 3.8 |
Organic Chemistry – Basic Principles and Techniques | Class 11 | 2 | 3 | 4 | 4 | 2 | 15 | 3.0 |
Chemical Bonding and Molecular Structure | Class 11 | 3 | 3 | 3 | 2 | 3 | 14 | 2.8 |
Classification of Elements & Periodicity | Class 11 | 0 | 4 | 3 | 4 | 2 | 13 | 2.6 |
Thermodynamics | Class 11 | 2 | 1 | 4 | 3 | 3 | 13 | 2.6 |
Solutions | Class 12 | 3 | 0 | 5 | 3 | 2 | 13 | 2.6 |
Structure of Atom | Class 11 | 3 | 2 | 3 | 2 | 1 | 11 | 2.2 |
d and f Block Elements | Class 12 | 3 | 2 | 1 | 1 | 4 | 11 | 2.2 |
Chemical Kinetics | Class 12 | 2 | 1 | 2 | 3 | 2 | 10 | 2.0 |
Amines | Class 12 | 2 | 4 | 0 | 3 | 1 | 10 | 2.0 |
Some p-Block Elements | Class 11 | 4 | 2 | 2 | 0 | 1 | 9 | 1.8 |
Alcohols, Phenols and Ethers | Class 12 | 2 | 4 | 2 | 1 | 0 | 9 | 1.8 |
Basic Concepts of Chemistry | Class 11 | 1 | 1 | 1 | 3 | 2 | 8 | 1.6 |
Aldehydes, Ketones and Carboxylic Acids | Class 12 | 2 | 3 | 0 | 1 | 2 | 8 | 1.6 |
Biomolecules | Class 12 | 0 | 1 | 2 | 2 | 3 | 8 | 1.6 |
Equilibrium | Class 11 | 1 | 1 | 3 | 1 | 1 | 7 | 1.4 |
Electrochemistry | Class 12 | 2 | 2 | 1 | 0 | 2 | 7 | 1.4 |
Haloalkanes and Haloarenes | Class 12 | 2 | 1 | 2 | 2 | 0 | 7 | 1.4 |
Redox Reactions | Class 11 | 1 | 1 | 1 | 1 | 2 | 6 | 1.2 |
Questions per-year figures give yearly totals of 39 (2022), 39 (2023), 50 (2024), 45 (2025), and 45 (2026) — not a clean 45 every year, which is what NEET Chemistry is structured to have.
Three chapters stand well clear of the rest on both total marks and consistency: Coordination Compounds (4.0 average), Hydrocarbons (3.8 average, the highest-weightage Class 11 Chemistry chapter by a clear margin), and Organic Chemistry – Basic Principles and Techniques (3.0 average). Notably, two of the three top chapters are Class 11 topics, which cuts against any assumption that Class 12 Chemistry automatically deserves more revision time chapter-for-chapter. The overall subject-level split may favour Class 12, but the single highest-yield chapter in the entire subject is Class 11 Hydrocarbons. Chemical Bonding and Molecular Structure and Thermodynamics.
Coordination Compounds shows the upward trend in the dataset—from a single question in 2022 to six in both 2025 and 2026. This is a six-time high weightage that makes it the chapter most worth flagging for anyone using older weightage data or an outdated priority list. Solutions moved in the opposite direction unpredictably, swinging from 3 questions in 2022 to 0 in 2023 and back up to 5 in 2024, the least stable pattern of any chapter in the top half of the table. Alcohols, Phenols and Ethers and Haloalkanes and Haloarenes both trended down to zero questions in 2026 after a steady 2 questions across the earlier years. Since a chapter going quiet for one year doesn't reliably predict it staying quiet the next.
Build your Chemistry revision order directly from the weightage table given above rather than the sequence of chapters given in NCERT. Coordination Compounds and Hydrocarbons carry triple the weightage of chapters like Redox Reactions or Haloalkanes and should get more revision time. Once priorities are set, along with the chapters, do targeted practice: the top 40 organic chemistry reactions to master for NEET line up directly with high-weightage chapters like Hydrocarbons and Organic Chemistry Basic Principles. The top 5 physical chemistry chapters for NEET cover the Thermodynamics and Chemical Kinetics.
While creating the NEET 2027 study timetable, this table is the practical input for that decision. Allocate more of your Chemistry hours to the top third of chapters shown above and treat the bottom third as revision-only rather than deep-study material. Whatever the timeline is, a 1-month NEET preparation plan or a 15-day plan, completing the syllabus on schedule still matters more than mastering any single chapter.
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Frequently Asked Questions (FAQs)
Coordination Compounds, with a five-year average of 4.0 questions, is the single highest-weightage Chemistry chapter. Then Hydrocarbons, a Class 11 chapter.
Class 12 likely carries more marks in total across all its chapters. However, the single highest-yield chapters are in both classes. So, neither class should be deprioritised based on chapters.
On Question asked by student community
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