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Top 5 High-Weightage Organic Chemistry Chapters to Secure 45+ Marks in NEET 2026

Top 5 High-Weightage Organic Chemistry Chapters to Secure 45+ Marks in NEET 2026

#NEET
Irshad AnwarUpdated on 17 Nov 2025, 02:20 PM IST

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.

This Story also Contains

  1. Importance of Studying High-Scoring Organic Chemistry Chapters for NEET
  2. Top 5 High-Weightage Organic Chemistry Chapters
  3. Important Topics from High-Weightage Organic Chemistry Chapters
  4. Tips to Prepare High-Scoring Organic Chemistry Chapters for NEET
Top 5 High-Weightage Organic Chemistry Chapters to Secure 45+ Marks in NEET 2026
Top 5 High-Weightage Organic Chemistry Chapters to Secure 45+ Marks in NEET 2026

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.

Importance of Studying High-Scoring Organic Chemistry Chapters for NEET

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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Top 5 High-Weightage Organic Chemistry Chapters

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.

Important Topics from High-Weightage Organic Chemistry Chapters

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

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Tips to Prepare High-Scoring Organic Chemistry Chapters for NEET

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.

NEET Syllabus: Subjects & Chapters
Select your preferred subject to view the chapters

Frequently Asked Questions (FAQs)

Q: What are the hardest organic chemistry topics?
A:

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.

Q: Which book is best for NEET Chemistry 2026?
A:

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.

Q: What are the most important organic chemistry chapters for NEET?
A:

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.

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