Careers360 Logo
ask-icon
share
    Most Ignored but High-Weightage Topics in JEE Main Chemistry - Don't Skip These

    Most Ignored but High-Weightage Topics in JEE Main Chemistry - Don't Skip These

    Shivani PooniaUpdated on 14 Jun 2026, 01:43 AM IST

    Most Ignored but High-Weightage Topics in JEE Main Chemistry: While preparing for the JEE Main exam, everyone focuses on the popular chapters. But there are some topics which are ignored by students, but they hold high-weightage in the JEE Main exam. These chapters are generally short, NCERT based and can help students score easy marks with comparatively less time to prepare. Analysis of the previous years' question papers shows that topics like Purification and Characterisation of Organic Compounds and Principles Related to Practical Chemistry are often ignored during preparation but still contribute questions in the exam. This article highlights the most ignored yet important Chemistry topics for JEE Main 2027, their weightage, and preparation tips to help aspirants maximise their scores.

    This Story also Contains

    1. Most ignored but High-Weightage Topics in JEE Main Chemistry – That Gave Easy Marks
    2. JEE Main 2027: How We Found These Ignored but Important Chapters?
    3. JEE Main 2027: How to Revise These Topics in Less Time?
    Most Ignored but High-Weightage Topics in JEE Main Chemistry - Don't Skip These
    Most ignored but high-weightage topics in JEE Main Chemistry

    Most ignored but High-Weightage Topics in JEE Main Chemistry – That Gave Easy Marks

    Now, let's go through these most ignored topics in JEE Main Chemistry. These are the topics that were expected to be scoring and easy, but due to the underestimation of their level of difficulty, they were also the most ignored ones. The data we have given here is based on the previous year's trends. As we have seen, the chapter Purification and Characterisation of Organic Compounds has a total weightage of 1.60%, and Principles Related to Practical Chemistry has a weightage of 0.89%. Let’s now have a look at the table, which shows us the constituted data of JEE Mains 2027.

    Chapter

    Concept

    Number of Questions in JEE Main 2026

    Purification and Characterisation of Organic Compounds

    Chromatography

    1

    Purification and Characterisation of Organic Compounds

    Test for Hydrogen and Carbon

    1

    Purification and Characterisation of Organic Compounds

    Duma's Method

    5

    Purification and Characterisation of Organic Compounds

    Carius Method (Halogen and Sulphur)

    2

    Purification and Characterisation of Organic Compounds

    Percentage Composition And Equivalent Weight

    1

    Principles Related to Practical Chemistry

    Introduction to Salt Analysis

    2

    Principles Related to Practical Chemistry

    Confirmatory Test of Anions $\begin{aligned} & \mathrm{CO}_3^{2-}, \mathrm{S}^{2-}, \mathrm{SO}_3^{2-}, \\ & \mathrm{NO}_2^{2-}, \text { and } \\ & \mathrm{CH}_3 \mathrm{COO}^{-}\end{aligned}$

    2

    Principles Related to Practical Chemistry

    Preliminary Test with Dilute Sulphuric Acid (Systematic Analysis of Anions):

    1

    Principles Related to Practical Chemistry

    Formation of Coloured Ions

    1

    Principles Related to Practical Chemistry

    Analysis of Cations

    1

    Principles Related to Practical Chemistry

    Wet Tests for Identification of Cations

    1

    Principles Related to Practical Chemistry

    Oxidation Number

    1

    Confused About College Admissions?

    Get expert advice on college selection, admission chances, and career path in a personalized counselling session.

    Book a Counselling Slot
    Select Date
    Pick a Slot

    JEE Main 2027: How We Found These Ignored but Important Chapters?

    As a sincere student, you might ask, 'Why should you trust this set of most ignored topics in JEE Main 2027 Chemistry?' Well, our experts have analysed JEE Main previous year questions (PYQs) and saw that most of the students keep some chapters for the end. And most of these chapters have multiple questions in the question paper. These are the easy chapters that don't require a lot of weeks of study but appear every year and directly test NCERT knowledge.

    JEE Main 2027: How to Revise These Topics in Less Time?

    Now that you already know about JEE Main 2027 chemistry high-weightage topics. And you know exactly which are also the most ignored topics in JEE Main 2027 Chemistry; we will see some tips to excel in these topics to increase your overall marks in the JEE Mains 2027 exam.

    1. To thoroughly prepare for JEE Mains 2027 chemistry's most ignored topics, refer to the JEE Main syllabus and this article and the topics we have given.

    2. Plan these topics and how you should finish studying them.

    3. Solve mock tests so you don't go out of practice.

    4. In every question paper, whenever you solve it, never skip these questions by underestimating them.

    5. You can make a separate notebook for these topics that need less time for revision.

    6. Keep at least 1 day that you dedicate to these high-weightage topics in JEE Main 2027 Chemistry

    Amity University Noida-B.Tech Admissions 2026

    Among top 100 Universities Globally in the Times Higher Education (THE) Interdisciplinary Science Rankings 2026

    Geeta University B.Tech Admissions 2026

    40 LPA Highest Package | Up to 100% Scholarship worth 24 Crore via GUTS exam

    Frequently Asked Questions (FAQs)

    Q: Which are the most ignored but high-weightage chapters in JEE Main Chemistry?
    A:

    Based on previous years' questions analyses, "Purification and Characterisation of Organic Compounds" and "Principles Related to Practical Chemistry" are the most ignored but high-weightage chapters.


    Q: How should I include these topics in my JEE Main preparation strategy?
    A:

    Dedicate at least one full day exclusively to these topics, maintain a separate notebook for quick revision, and ensure you attempt related questions whenever you solve mock papers.

    Q: Why do students ignore some high-weightage Chemistry topics?
    A:

    Many students focus more on lengthy or popular chapters and leave short NCERT-based topics for the end of their preparation. As a result, several scoring chapters are often neglected despite having decent weightage.

    Q: Are NCERT books enough to prepare these Chemistry topics?
    A:

    Most questions from topics such as Practical Chemistry and Purification of Organic Compounds are largely NCERT-based. However, students should also solve previous year questions and mock tests for better preparation.

    Q: How many questions are usually asked from these ignored Chemistry chapters in JEE Main?
    A:

    The number of questions varies each year, but these chapters frequently contribute one or more questions across different JEE Main sessions, making them important scoring areas.

    Q: How should I revise ignored but important Chemistry topics for JEE Main 2027?
    A:

    Students should prepare concise notes, revise NCERT concepts regularly, solve previous year questions, and include these chapters in their mock test analysis to improve retention.

    Articles
    |
    Certifications By Top Providers
    Data Analytics with Python
    Via Indian Institute of Technology Roorkee
    Basic Programming using Python
    Via Indian Institute of Technology Bombay
    Biomedical Nanotechnology
    Via Indian Institute of Technology Roorkee
    Online MCA
    Via Dayananda Sagar University, Bangalore
    Material Science
    Via Indira Gandhi National Open University, New Delhi
    Biomechanics of Joints and Orthopaedic Implants
    Via Indian Institute of Technology Kharagpur
    Explore Top Universities Across Globe

    Questions related to JEE Main

    On Question asked by student community

    Have a question related to JEE Main ?

    Hello, with 99.6 percentile in CUET or JEE Main, you have a good chance of getting admission to the Bachelor of Statistical Data Science (BSDS) programme. However, admission depends on the college, selection process, cutoff, and seat availability.

    Hello Dear Student,


    With a JEE Main CRL of around 3,00,000 and an EWS rank of around 46,000 , getting Computer Science and Engineering (CSE) at Odisha University of Technology and Research is highly unlikely .

    Why?

    • CSE is one of the most competitive branches at OUTR.
    • Previous years' closing

    Hello Dear Student,

    With a WBJEE TFW rank of 23,389 , getting Computer Science and Engineering (CSE) in a government engineering college is generally difficult, as TFW cutoffs for CSE are usually much lower.

    However, you have good chances of getting CSE or IT through the TFW quota in several

    Hey there,

    Yes, with 62% in Class 12 PCM, you can get direct admission to B.Tech in many AICTE-approved private engineering colleges without appearing for JEE Main. Many private universities and engineering colleges offer admission based on Class 12 marks, institute-level admission processes, or management quota seats. Generally, the minimum