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The National Eligibility cum Entrance Test (NEET) is a national-level exam for aspirants who want to study medicine. Chemistry is a part of the exam and includes topics from both Class 11 and Class 12. The chemistry syllabus is divided into three parts: physical, organic, and inorganic chemistry. Each section is important and carries significant weight. Knowing the top five high-weightage organic chemistry chapters makes the preparation more efficient and focused.
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Organic chemistry is important for the NEET exam, as the Hydrocarbons, haloalkanes and haloarenes, alcohols, phenols, ethers, etc., are some of the high-scoring organic chemistry chapters for NEET. Studying these chapters will help aspirants to score high and improve their overall rank in the exam. Regularly reviewing the important organic chemistry topics helps to improve problem-solving skills.
Organic chemistry tests students' conceptual understanding and application-based knowledge. Analysing the top 5 high-weightage organic chemistry chapters is important for aspirants. Studying through a structured approach offers several advantages, some of which are listed below.
The top 5 high-weightage organic chemistry chapters constitute around 10-15 questions, making them important to perform well.
Analysis of NEET previous question papers shows that questions from the high-scoring organic chemistry chapters for NEET are easy to solve. With a clear understanding, students can attempt them accurately and minimise negative marking.
Questions from the important organic chemistry topics are mainly straightforward and not time-consuming. This allows aspirants to save a lot of time and use it on other numerical questions.
Mastering the high-scoring organic chemistry chapters for NEET improves overall understanding of chemistry, as many chapters of physical and organic chemistry are interconnected.
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Organic chemistry comprises one-third of the overall questions in the NEET exam. The top five high-weightage organic chemistry chapters, which aspirants should prioritise, are listed below. To demonstrate the importance of these chapters, the table includes the number of questions asked about them over the last five years. Following the NEET preparation tips and smart study strategies can improve performance.
Chapters | 2021 | 2022 | 2023 | 2024 | 2025 | Weightage (%) |
0 | 2 | 3 | 4 | 4 | 5.44 | |
3 | 3 | 1 | 5 | 4 | 6.63 | |
3 | 2 | 1 | 2 | 2 | 4.28 | |
2 | 2 | 4 | 2 | 1 | 4.28 | |
5 | 2 | 3 | 0 | 1 | 4.7 |
Given below are the important topics of the top 5 high-weightage organic chemistry chapters. Aspirants can focus on these concepts first to score 700 marks in the NEET exam.
Hydrocarbons – Classification of hydrocarbons, isomerism in alkenes, stability of alkene, halogenation, Friedel-Craft’s alkylation, Markovnikov's rule, and peroxide effect, electrophilic substitution reactions
Organic Chemistry – Some Basic Principles and Techniques - IUPAC Nomenclature of organic compounds, hybridisation (s and p), classification of organic compounds, isomerism, covalent bond fission, reaction intermediates
Aldehydes, Ketones, and Carboxylic Acids - Nucleophilic addition reactions, Wolf-Kishner and Clemmensen reactions, aldol condensation, Cannizzaro reactions, acidic strength of carboxylic acids
Alcohols, Phenols, and Ethers - Alcohols: Physical and chemical properties of alcohol, Reactions involving cleavage of (O-H) bonds, (C-O) bonds, and reactions involving cleavage of both alkyl and hydroxyl groups. Phenols: Reactions of the benzene ring, nitration, sulphonation, Reimer-Tiemann reaction
Haloalkanes and Haloarenes - Properties and reactions of haloarenes, mechanisms, uses, and environmental effects of chloroform
Organic chemistry can be difficult for some students, but with the proper preparation strategy, it becomes simple. Studying the important organic chemistry topics from the NEET chemistry syllabus makes preparation effective. The expert-proven tips listed below can help students efficiently complete the top five high-weightage organic chemistry chapters.
Start with the NCERT books for NEET. Topics like hydrocarbons and organic compounds are explained in simple language.
Analyse the NEET chemistry chapter-wise weightage and identify the top 5 high-weightage organic chemistry chapters to prepare effectively.
Short notes and flash cards should be used to review important organic chemistry topics such as reaction mechanisms and reaction naming.
Regularly solve questions from the high-scoring organic chemistry chapters for NEET to improve speed and accuracy.
Candidates should prepare a NEET study plan and focus more on the top 5 high-weightage organic chemistry chapters.
Frequently Asked Questions (FAQs)
The hardest organic chemistry topics vary from student to student. The reaction mechanisms, named reactions like Cannizzaro, Aldol, and Friedel-Crafts, and concepts of acidic and basic strength are considered the most difficult because of their strong conceptual understanding.
The best book for NEET Chemistry 2026 is the NCERT chemistry textbooks, as most of the questions directly come from this book. For additional practice, students can refer to the Modern’s ABC of Chemistry, Dinesh Chemistry Guide, etc.
Chapters such as hydrocarbons, alcohols, phenols, and ethers, haloalkanes, and haloarenes, aldehydes, ketones, and carboxylic acids are among the most important organic chemistry chapters for NEET.
On Question asked by student community
Hi Gawade,
please refer to this article -
https://medicine.careers360.com/articles/neet-ug-mock-tests
You can find the mock test link here
Government Medical Colleges in states like Rajasthan, Uttar Pradesh, Madhya Pradesh, Bihar, Haryana, Punjab, Gujarat, Maharashtra
Hi Arti,
Please refer to these links
Weightage:
https://medicine.careers360.com/articles/neet-biology-chapter-wise-weightage
High-weightage chapters:
https://medicine.careers360.com/articles/neet-2026-high-weightage-chapters
Do or Die Biology:
https://medicine.careers360.com/articles/do-or-die-chapters-in-biology-for-neet
Hindi syllabus:
https://medicine.careers360.com/hi/articles/neet-syllabus
Most Scoring Concepts eBook (free PDF):
https://medicine.careers360.com/download/ebooks/neet-most-scoring-chapters-topics-based-on-past-5-year-analysis
You still have enough time. For NEET 2026 (drop year, 3 months left), focus on:
NCERT linebyline for highweightage chapters (Human Physiology, Plant Physiology, Cell, Biomolecules, Biological Classification, Plant/Animal Kingdom, Genetics, Ecology)
Daily chapterwise MCQs + PYQs and weekly full mocks with proper analysis
Useful Careers360 links for planning:
NEET
Yes, open category students can also appear in the NEET exam. Candidates must check the detailed eligibility criteria in the NEET information brochure. Applicants from the open category have to pay the NEET form fees for Rs. 1700.
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