JEE Main 2020 Chemistry Pattern: Important Topics, Weightage, Marking Scheme

    Himanshi Sharma Himanshi Sharma
    Exam Prep Master

    The National Testing Agency has announced new changes in JEE Main 2020 Exam pattern this year in the official information brochure. According to Exam Pattern of JEE Main 2020, Paper 1 will consist of objective type-multiple choice questions and numerical value based questions whereas Paper 2 has been separated for B.Arch and B.Plan aspirants.

    As per JEE Main Chemistry exam pattern, there will be a total of 25 questions to be attempted in a duration of 3 Hours. Candidates can appear for the exam in three language i.e. Hindi, English and Gujarati (Only for centers in Gujarat, Daman and Diu, and Dadra and Nagar Haveli).

    The Chemistry section consists of objective type questions from Physical Chemistry, Organic and Inorganic chemistry. Some of the important topics are Classification of Elements and Periodicity in Properties, Hydrogen, Organic Compunds containing Halogens, Purification and characterization of Organic compounds, Chemical Thermodynamics, Chemical Bonding and Molecular Structure, etc. Check JEE Main Chemistry Syllabus

    Read the article to know the detailed Chemistry exam pattern, weightage, important topics etc.

    Must Read:

    JEE Main Chemistry Exam Pattern Highlights

    Mode of ExamComputer Based Test (Online)
    Marking Scheme+4 for the correct answers and -1 for incorrect answer
    Duration of Exam3 Hours
    Language of ExamHindi, English and Gujarati (Only for centers in Gujarat, Daman and Diu, and Dadra and Nagar Haveli)
    Types of QuestionsMultiple Choice Questions (MCQs) and Numerical Value Based 
    Total Number of Questions25 (20+5) Questions
    Total Marks100

    Knowledge of exam pattern

    Why is the Knowledge of exam pattern important ?

    Understanding the JEE Main exam pattern is quite essential to have a good preparation for the entrance examination. The pattern brings to light the assessment time duration, type and number of questions that will appear in the exam, section-wise weightage, and the marks allotted to each topic. Even if a candidate is in the final phase of preparation, one should not forget the  question paper pattern. Brushing up the major areas carefully will reduce stress and anxiety during the exam.The paper pattern goes along with attempting mock papers and can prepare you better for the real exam.

    Details of JEE Main Chemistry Exam Pattern

    JEE Main Mode of Examination: JEE Main 2020 will be conducted in Online mode only i.e. Computer-based Test.

    JEE Main Syllabus: The Chemistry is divided into 3 sections: Physical Chemistry, Organic Chemistry, and Inorganic Chemistry. The Topics under all the three sections are included in JEE Main Chemistry Syllabus.

    JEE Main Marking Scheme: As per JEE Main 2020 Marking Scheme, candidates will be awarded 4 marks for each correct answer. 1 mark will be deducted for every wrong answer. There will be no negative marks for Numerial value based questions.

    JEE Main Exam Duration: Aspirants will get a total of 3 Hours to attempt 75 questions. Practice with JEE Main Sample Papers.

    Medium of Question Paper: Candidates can choose to take exam in any of the three languages i.e. Hindi, English and Gujarati (Only for centers in Gujarat, Daman and Diu, and Dadra and Nagar Haveli). 

    JEE Main Chemistry:Marking Scheme

    Marking Scheme for JEE Main Chemistry Paper

    • Candidates will get 4 marks for each correct answer.
    • 1 mark will be deducted for every incorrect answer.
    • Zero mark will be rewarded for unattempted questions.
    • There will be no negative marks for Numerial value based questions.
    • Candidates are advised not to fill more than one option in the OMR sheet. If they do so then that question will be considered incorrect and you will get negative marks.
    SubjectTotal MarksNumber of QuestionsMarking Scheme
    Chemistry10075+4 marks will be awarded for the correct answers -1 mark will be deducted for each incorrect response

    JEE Main Chemistry:Important Topics

    Important Topics for JEE Main Chemistry

    For most of the aspirants, chemistry is the rank decider because it mostly talks about the basics and in comparison to Mathematics and Physics questions asked in JEE Main, Chemistry section is more theoretical than calculative which makes it relatively easier for students to score high in this section. There are many chapters/topics that an aspirant must cover in Chemistry in order to score a better rank. Figuring out the important chapters/topics for JEE Main Chemistry is not a complicated task, and you can identify the same by referring to the previous years question papers of JEE Main. Check Here JEE Main 2020 Practice Paper

    Morever, in order to help the candidates, we have provided the list of important topics or chapters of JEE Main Chemistry section below:

    1. Organic Chemistry 

    Biomolecules and PolymersAlcohol and EthersChemistry in Action
    Carbonyl CompoundsCarboxylic Acid and its DerivativesClassification and Nomenclature
    General Organic ChemistryHaloalkanesHaloarenes and Phenols
    Hydrocarbons: Alkanes, Alkenes, and AlkynesIsomerismNitrogen Compound and Aliphatic Amines
    Practical and Environmental ChemistryOzonolysisGrignard Reagent

    2. Inorganic Chemistry

    Chemical BondingCoordination CompoundsD-Block and F-Block Elements
    MetallurgyP-Block Elements Periodic PropertiesQualitative Analysis
    S-Block ElementsHydrogen and its Compounds-

    3. Physical Chemistry

    Chemical EquilibriumAtomic StructureChemical Kinetics
    ElectrochemistryGaseous StateIonic Equilibrium 
    Mole ConceptNuclear ChemistryRedox and Volumetric Analysis
    Solid State Solution (General and Colligative Properties)Thermodynamics and Thermochemistry-

    JEE Main Chemistry: Chapter-wise Weightage

    JEE Main Chemistry: Chapter-wise Weightage

    Based on the questions asked in previous years, we have tabulated the weightage of topics or chapters of Chemistry which are important for JEE Main 2020.

    1. Physical Chemistry

    ChaptersAverage Number of questionsWeightage
    Some Basic Concepts in Chemistry1-2 4-8%
    States of Matter4%
    Gaseous State0-10-4%
    Solid State0-10-4%
    Chemical Bonding and Molecular Structure1-34-12%
    Atomic Structure & Nuclear Chemistry0-20-8%
    Surface Chemistry0-10-4%
    Chemical Kinetics0-10-4%
    Chemical Thermodynamics0-10-4%
    Solutions & Colligative Properties0-10-4%
    Redox Reactions and Electrochemistry0-10-4%

    2. Inorganic Chemistry

    Classification of Elements1-24-8%
    D-Block & F-Block elements0-10-4%
    Environmental Chemistry0-10-4%
    Coordination Compounds2-3 8-12%

    3. Organic Chemistry

    Some basic Principles of Organic Chemistry0-2 0-8%
    Hydrocarbon2-3 8-12%
    Alkyl, Hallide, Alcohol & Ether (Reaction Mechanism)1-3 4-12%
    Aromatic Compounds0-10-4%
    Biomolecules0-1 0-4%
    Chemistry in everyday life0-10-4%
    Grignard Reagent, Reduction, Oxidation & Hydrolysis0-10-4%
    Carbonylic Acid and their Derivatives0-10-4%
    Principles related to Practical Chemistry0-10-4%
    Total25 Questions100%

    JEE Main Chemistry:Paper Analysis

    Difficulty Level of JEE Main 2020 Chemistry (January)

    JEE Main aspirants found the Chemistry section easy amongst the other two sections and there were no difficult questions. However, few of them were tricky questions. Most of the questions asked in JEE Main Chemistry section were from NCERT textbooks, and there was more emphasis on Class 12th syllabus.

    Therefore, candidates appearing for April 2020 session exam are advised to focus on Class 12th topics along with Class 11th topics. 

    JEE Main 2020 (January session) was conducted from January 6 to January 9, 2020. As per the analysis, 10-12 questions were asked from Organic Chemistry, 7-9 questions were from Physical chemistry and Inorganic Chemistry had 5 to 6 questions in the entrance examination.

    Read How to Prepare for JEE Main 2020 Chemistry Paper for April session

    Sample Questions for JEE Main Chemistry April Session

    Question: Wash and wear clothes are manufactured using

    1. Wool fibres
    2. Cotton mixed with nylon
    3. Nylon fibres
    4. Terylene fibres

    Answer: (D) Terylene fibres

    Question: A mixed solution of potassium hydroxide and sodium carbonate required 15 ml of a N/20 HCL solution when titrated with phenolphthalein as an indicator. But the same amount of thhe solution when titrated with methyl orange as an indicator required 25 ml of the same acid. Calculate the amount of KOH present in the solution.

    1. 0.24 g
    2. 0.038 g
    3. 0.014 g
    4. 5.4 g

    Answer: (C) 0.014 g

    Question: High density polyethylene (HDPE) can be prepared from ethylene by

    1. Condensing with styrenes
    2. Ziegler-Natta Process
    3. Heating with peroxides
    4. Condensing in sealed tubes

    Answer: (B) Ziegler-Natta Process

    Question: The elements of group IA provide a colour to the flame of Bunson Burner due to

    1. Low ionization potential
    2. Softness
    3. Presence of one electron in the outermost orbit
    4. Low melting point

    Answer: (A) Low ionization potential

    Question: Which of the following is used as an antibiotic

    1. Tocopherol
    2. Paracetamol
    3. Ibuprofen
    4. Ciprofloxacin

    Answer: (D) Ciprofloxacin

    Question: Which of the following is not true for reserpine?

    1. Reserpine is a non-alkaloid
    2. Reserpine is a tranquilizer
    3. Reserpine is obtained from the plant Raowolfia serpentine
    4. Reserpine is also known as serpasil

    Answer: (A) Reserpine is a non-alkaloid

    Click Here to download JEE Main 2020 Question Paper

    What is Chemistry and its Scope?

    What is Chemistry and its Scope?

    Chemistry is one of the important subjects in JEE Main entrance examination. There are three sections in Chemistry i.e. Inorganic Chemistry, Organic Chemistry and Physical Chemistry. Generally in examination, theoretical questions are asked from this subject. It is a branch of science dealing with the study structure, composition and properties of matter. Moreover, It also deals with the study of the changes with different forms of matter under different conditions.

    Scope of studying Chemistry

    There are many examples in your day-to-day life that involve chemistry, its application, and its rules. Few of them are mentioned below:

    The Scope of Chemistry in Supply of Food- The study of chemistry has provided chemical fertilizers such as calcium superphosphate, Ammonium Sulphate, Sodium Nitrate, Urea. It has helped farmers to protect the crops from insects and harmful bacteria by the use of certain effective insecticides. Chemistry has led to the discovery of preservatives. 

    The Scope of Chemistry in Industry- Chemistry plays an important and useful role in the development and growth of a number of industries. For example: Cement, glass, textile, leather,etc. It has also helped in the greater production of nitric acid, sulphuric acid,and Ammonia. 

    The Scope of Chemistry in saving the environment- We have environment friendly chemicals because of Science which helps us to Conserve the natural environment. For Example Replacement of CFCs in the refrigerator.

    The Scope of Chemistry in War- Chemistry plays a crucial role in the discovery of hughly explosive substances such as Dynamite, Nitroglycerine and TNT. It also plays a role in finding poisonous gases like Phosgene, mustard gas, etc.

    Important Instructions for Candidates

    Important Instructions for Candidates

    • JEE Main Admit Card must be brought to the examination centre for verification with a minimum of one original and valid photo identification proof (Aadhar Card, Passport, College ID, PAN Card, Driver’s License, Voter ID, or Employer ID).
    • Beverages and eatables will not be allowed inside the examination hall. Those aspirants who suffer from a medical condition were allowed to carry medicine.
    • Candidates must report to the venue of examination 60 minutes before the scheduled time of examination.
    • Candidates will be allowed to take the exam only if their credentials get verified by the officials of the examination centre.
    • The Aspirants should not tamper with the computers provided to them in the hall.
    • JEE Main 2020 Admit Card will be considered valid only if the candidate’s signature and photograph are clearly visible.
    • After taking your seat, check the computer that has been allocated is in appropriate working condition. 
    • Confirm your photograph, which will show up on the screen on the right-hand upper corner of the screen. 
    • Read the important instructions, which will show up on the screen right after you sign into the account. 

    Frequently Asked Questions

    JEE Main Chemistry Exam Pattern- FAQs

    Question: How many questions will be there in the Chemistry section?

    Ans. There will be 25 questions asked from the Chemistry section. 

    Question: Are there any sectional limits?

    Ans. No, there is no sectional limit in JEE Main 2020. Candidates can dedicate as much time on a particular section.

    Question: Will JEE Main Chemistry have a descriptive question?

    Ans. According to JEE Main Chemistry Exam Pattern, the examination will only have Multiple Choice Questions (MCQs) and Numerical Value based Questions.

    Question: How many marks will be deducted for unanswered questions in JEE Main Chemistry?

    Ans. As per JEE Main Chemistry Paper Pattern, there will be no deduction of marks for unanswered questions. Such questions will not be taken into consideration while calculating the total marks of the candidate.

    Question: What will be the marking scheme in JEE Main Chemistry Paper?

    Ans. The candidates will be awarded +4 marks for each correct response whereas, -1 will be deducted for every incorrect answer.

    *The article might have information for the previous academic years, which will be updated soon subject to the notification issued by the University/College


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