JEE MAIN 2020 CHEMISTRY SYLLABUS

NATIONAL LEVEL ONLINE TEST

    JEE Main Chemistry Syllabus- Topics, Weightage, Preparation and Paper Attempting Tips

    Karishma Khatri Karishma Khatri
    Exams Prep Master

    Chemistry is often considered the most scoring section by test takers and experts in JEE Main B.E/ B.Tech paper. As we know, it is divided into three parts Organic chemistry, Inorganic chemistry and Physical chemistry. All these three subdivisions vary in nature and therefore covering the chemistry syllabus requires a proper plan. Check JEE Main Exam Pattern

    Through this article, we have tried to cover a range of aspects of JEE Main Chemistry Syllabus which includes, the unit wise syllabus, topic-wise weightage, video lectures, mock tests, reference books, difficulty level analysis, and tips for attempting the chemistry section and preparation strategies. 

     

    Unit-wise Syllabus by NTA

    JEE Main Chemistry: Unit-wise Syllabus by NTA

    JEE Main Chemistry syllabus comprises a total of three sections spread over 28 units. Download JEE Main 2020 Official Syllabus Released by NTA

    Section A: Physical Chemistry
    Unit NumberTopicSub-topics
    1.Some Basic Concepts of Chemistry

    Matter and its nature, Dalton’s the atomic theory, the concept of the atom, molecule, element, and compound;

    Physical quantities and their measurements in Chemistry, precision, and accuracy, significant figures, S.I. Units, dimensional analysis;

    Laws of chemical combination;

    Atomic and molecular masses, mole concept, molar mass, percentage composition, empirical and molecular formulae;

    Chemical equations and stoichiometry.

    2.States of Matter

    Classification of matter into solid, liquid and gaseous states;

    Gaseous State: Measurable properties of gases; Gas laws – Boyle’s law, Charles’s law, Graham’s law of diffusion, Avogadro’s law, Dalton’s law of partial pressure;

    The concept of the Absolute scale of temperature; Ideal gas equation, Kinetic theory of gases (only postulates);

    The concept of average, root mean square and most probable velocities;

    Real gases, deviation from Ideal behaviour, compressibility factor, van der Waals equation, liquefaction of gases, critical constants;

    Liquid State: Properties of liquids – vapour pressure, viscosity and surface tension and effect of temperature on them (qualitative treatment only);

    Solid State: Classification of solids-molecular, ionic, covalent and metallic solids, amorphous and crystalline solids (elementary idea);

    Bragg’s Law and its applications;

    Unit cell and lattices, packing in solids (fcc, bcc and hcp lattices), voids, calculations involving unit cell parameters, imperfection in solids;

    Electrical, magnetic and dielectric properties.

    3.Atomic Structure

    Discovery of subatomic particles (electron, proton, and neutron);

    Thomson and Rutherford atomic models and their limitations;

    Nature of electromagnetic radiation, photoelectric effect;

    The spectrum of hydrogen atom, Bohr model of hydrogen atom – its postulates, derivation of the relations for energy of the electron and radii of the different orbits, limitations of Bohr’s model;

    Dual nature of matter, de-Broglie relationship, Heisenberg uncertainty principle;

    Elementary ideas of quantum mechanics, the quantum mechanical model of an atom, its important features, the concept of atomic orbitals as one-electron wave functions;

    Variation of Ψ1 and Ψ2 with r for 1s and 2s orbitals; various quantum numbers (principal, angular momentum, and magnetic quantum numbers), and their significance;

    Shapes of s, p and d – orbitals, electron spin and spin quantum number;

    Rules for filling electrons in orbitals – Aufbau principle, Pauli exclusion principle and Hund’s rule, electronic configuration of elements, the extra stability of half-filled, and completely filled orbitals.

    4.Chemical Bonding and Molecular Structure

    Kossel – Lewis approach to chemical bond formation, the concept of ionic and covalent bonds;

    Ionic Bonding: Formation of ionic bonds, factors affecting the formation of ionic bonds; calculation of lattice enthalpy;

    Covalent Bonding: Concept of electronegativity, Fajan’s rule, dipole moment; Valence Shell Electron Pair Repulsion (VSEPR) theory and shapes of simple molecules;

    Quantum mechanical approach to covalent bonding: Valence bond theory, Its important features, the concept of hybridization involving s, p, and d orbitals; Resonance;

    Molecular Orbital Theory: Its important features, LCAOs, types of molecular orbitals (bonding, antibonding), sigma and pi-bonds, molecular orbital electronic configurations of homonuclear diatomic molecules, the concept of bond order, bond length and bond energy;

    Elementary idea of metallic bonding, Hydrogen bonding, and its applications.

    5.Chemical Thermodynamics

    Fundamentals of thermodynamics: System and surroundings, extensive and intensive properties, state functions, types of processes;

    First law of thermodynamics: Concept of work, heat internal energy, and enthalpy, heat capacity, molar heat capacity;

    Hess’s law of constant heat summation;

    Enthalpies of bond dissociation, combustion, formation, atomization, sublimation, phase transition, hydration, ionization, and solution;

    The second law of thermodynamics: Spontaneity of processes; Delta S of the universe and Delta G of the system as criteria for spontaneity, Delta Go (Standard Gibbs energy change) and equilibrium constant.

    6.Solutions

    Different methods for expressing the concentration of a solution: molality, molarity, mole fraction, percentage (by volume and mass both), the vapour pressure of solutions and Raoult’s Law;

    Ideal and non-ideal solutions, vapour pressure – composition, plots for ideal and non-ideal solutions;

    Colligative properties of dilute solutions, relative lowering of vapour pressure, depression of freezing point, elevation of boiling point and osmotic pressure;

    Determination of molecular mass using colligative properties;

    Abnormal value of molar mass, Hoff factor, and its significance.

    7.Equilibrium

    Meaning of equilibrium, the concept of dynamic equilibrium;

    Equilibria involving physical processes: Solid – liquid, liquid – gas and solid – gas equilibria, Henry’s law, a general characteristic of equilibrium involving physical processes;

    Equilibria involving chemical processes: Law of chemical equilibrium, equilibrium constants (Kp and Kc) and their significance, the significance of Delta G and Delta Go in chemical equilibria, factors affecting equilibrium concentration, pressure, temperature, the effect of the catalyst;

    Le Chatelier’s principle;

    Ionic equilibrium: Weak and strong electrolytes, ionization of electrolytes, various concepts of acids and bases (Arrhenius, Bronsted-Lowry and Lewis) and their ionization, acid-base equilibria (including multistage ionization) and ionization constants, ionization of water, pH scale, common ion effect, hydrolysis of salts and pH of their solutions, solubility of sparingly soluble salts and solubility products, buffer solutions.

    8.Redox Reactions and Electrochemistry

    Electronic concepts of oxidation and reduction, redox reactions, oxidation number, rules for assigning oxidation number, balancing of redox reactions;

    Electrolytic and metallic conduction, conductance in electrolytic solutions, specific and molar conductivities and their variation with concentration;

    Kohlrausch’s law and its applications;

    Electrochemical cells: Electrolytic and Galvanic cells, different types of electrodes, electrode potentials including standard electrode potential, half – cell and cell reactions, emf of a Galvanic cell and its measurement;

    Nernst equation and its applications; Relationship between cell potential and Gibbs’ energy change;

    Dry cell and lead accumulator, Fuel cells;

    Corrosion and its prevention.

    9.Chemical Kinetics

    The rate of a chemical reaction, factors affecting the rate of reactions: concentration, temperature, pressure, and catalyst.

    Elementary and complex reactions, order and molecularity of reactions, rate law, rate constant and its units, differential and integral forms of zero and first order reactions, their characteristics and half-lives, the effect of temperature on the rate of reactions.

    Arrhenius theory, activation energy and its calculation, collision theory of bimolecular gaseous reactions (no derivation).

    10.Surface Chemistry

    Adsorption: Physisorption and chemisorption and their characteristics, factors affecting the adsorption of gases on solids: Freundlich and Langmuir adsorption isotherms, adsorption from solutions.

    Catalysis: Homogeneous and heterogeneous, activity and selectivity of solid catalysts, enzyme catalysis, and its mechanism.

    Colloidal state: Distinction among true solutions, colloids, and suspensions, classification of colloids: lyophilic, lyophobic.

    Multimolecular, macromolecular and associated colloids (micelles), preparation and properties of colloids: Tyndall effect, Brownian movement, electrophoresis, dialysis, coagulation, and flocculation.

    Emulsions and their characteristics.

    Section B: Inorganic Chemistry
    Unit NumberTopicSub-topics
    11.Classification of Elements and Periodicity in Properties

    Modern periodic law and present form of the periodic table.

    s, p, d and f block elements.

    Periodic trends in properties of elements atomic and ionic radii, ionization enthalpy.

    Electron gain enthalpy, valence, oxidation states and chemical reactivity.

    12.General Principles and Process of Isolation of Metals

    Modes of occurrence of elements in nature, minerals, ores.

    Steps involved in the extraction of metals: concentration, reduction (chemical and electrolytic methods) and refining with special reference to the extraction of Al, Cu, Zn, and Fe.

    Thermodynamic and electrochemical principles involved in the extraction of metals.

    13.Hydrogen

    The position of hydrogen in periodic table, isotopes, preparation, properties, and uses of hydrogen.

    Physical and chemical properties of water and heavy water.

    Structure, preparation, reactions, and uses of hydrogen peroxide.

    Classification of hydrides: ionic, covalent and interstitial.

    Hydrogen as a fuel.

    14.S Block Elements (Alkali and Alkaline Earth Metals)

    Group 1 and Group 2 Elements: General introduction, electronic configuration and general trends in physical and chemical properties of elements, anomalous properties of the first element of each group, diagonal relationships.

    Preparation and properties of some important compounds: sodium carbonate, sodium chloride, sodium hydroxide and sodium hydrogen carbonate.

    Industrial uses of lime, limestone, Plaster of Paris and cement.

    The biological significance of Na, K, Mg and Ca.

    15.P Block Elements

    Group 13 to Group 18 Elements: General Introduction, Electronic configuration, and general trends in physical and chemical properties of elements across the periods and down the groups; unique behaviour of the first element in each group. Groupwise study of the p block elements.

    Group 13: Preparation, properties, and uses of boron and aluminium; Structure, properties and uses of borax, boric acid, diborane, boron trifluoride, aluminium chloride, and alums.

    Group 14: Tendency for catenation; Structure, properties, and uses of allotropes and oxides of carbon, silicon tetrachloride, silicates, zeolites, and silicones.

    Group 15: Properties and uses of nitrogen and phosphorus; Allotropic forms of phosphorus; Preparation, properties, structure, and uses of ammonia, nitric acid, phosphine and phosphorus halides, (PCl3, PCl5); Structures of oxides and oxoacids of nitrogen and phosphorus.

    Group 16: Preparation, properties, structures and uses of dioxygen and ozone; Allotropic forms of sulfur; Preparation, properties, structures, and uses of sulfur dioxide, sulphuric acid (including its industrial preparation); Structures of oxoacids of sulfur.

    Group 17: Preparation, properties, and uses of chlorine and hydrochloric acid; Trends in the acidic nature of hydrogen halides; Structures of Interhalogen compounds and oxides and oxyacids of halogens.

    Group 18: Occurrence and uses of noble gases; Structures of fluorides and oxides of xenon.

    16.D and F Block Elements

    Transition Elements: General introduction, electronic configuration, occurrence and characteristics, general trends in properties of the first-row transition elements: physical properties, ionization enthalpy, oxidation states, atomic radii, colour, catalytic behaviour, magnetic properties, complex formation, interstitial compounds, alloy formation.

    Preparation, properties, and uses of K2Cr2O7 and KMnO4.

    Inner Transition Elements: Lanthanides, Electronic configuration, oxidation states, chemical reactivity and lanthanoid contraction, and Actinoids: Electronic configuration and oxidation states.

    17.Coordination Compounds

    Introduction to coordination compounds, Werner’s theory.

    ligands, coordination number, denticity, chelation.

    IUPAC nomenclature of mononuclear coordination compounds, isomerism.

    Bonding-Valence bond approach and basic ideas of Crystal field theory, colour and magnetic properties.

    Importance of coordination compounds (in qualitative analysis, extraction of metals and in biological systems).

    18.Environmental Chemistry

    Environmental pollution: Atmospheric, water, and soil.

    Atmospheric pollution: Tropospheric and stratospheric.

    Gaseous pollutants: Oxides of carbon, nitrogen, and sulfur, hydrocarbons; their sources, harmful effects, and prevention.

    Greenhouse effect and Global warming, acid rain.

    Particulate pollutants: Smoke, dust, smog, fumes, mist; their sources, harmful effects, and prevention.

    Stratospheric pollution: Formation and breakdown of ozone, depletion of ozone layer its mechanism and effects.

    Water Pollution: Major pollutants such as pathogens, organic wastes, and chemical pollutants; their harmful effects and prevention.

    Soil pollution: Major pollutants such as Pesticides (insecticides, herbicides and fungicides) their harmful effects and prevention.

    Strategies to control environmental pollution.

    Section C: Organic Chemistry
    Unit NumberTopicSub-topics
    19.

    Purification and Characterisation of Organic Compounds

    Purification: Crystallization, sublimation, distillation, differential extraction, and chromatography principles and their applications.

    Qualitative analysis: Detection of nitrogen, sulfur, phosphorus, and halogens.

    Quantitative analysis (basic principles only): Estimation of carbon, hydrogen, nitrogen, halogens, sulfur, phosphorus.

    Calculations of empirical formula and molecular formulae; Numerical problems in organic quantitative analysis.

    20.

    Some Basic Principles of Organic Chemistry

    Tetravalency of carbon; Shapes of simple molecules – hybridization (s and p).

    Classification of organic compounds based on functional groups: -C = C- and those containing halogens, oxygen, nitrogen, and sulfur; Homologous series.

    Isomerism: structural and stereoisomerism.

    Nomenclature (Trivial and IUPAC): Covalent bond fission Homolytic and heterolytic: free radicals, carbocations, and carbanions; stability of carbocations and free radicals, electrophiles and nucleophiles.

    Electronic displacement in a covalent bond: Inductive effect, electromeric effect, resonance, and hyperconjugation.

    Common types of organic reactions: Substitution, addition, elimination, and rearrangement.

    21.

    Hydrocarbons

    Classification, isomerism, IUPAC nomenclature, general methods of preparation, properties and reactions.

    Alkanes: Conformations; Sawhorse and Newman projections (of ethane); Mechanism of halogenation of alkanes.

    Alkenes: Geometrical isomerism.

    Mechanism of electrophilic addition: addition of hydrogen, halogens, water, hydrogen halides (Markownikoff’s and peroxide effect); Ozonolysis, oxidation, and polymerization.

    Alkynes: Acidic character; Addition of hydrogen, halogens, water and hydrogen halides; Polymerization.

    Aromatic hydrocarbons: Nomenclature, benzene structure and aromaticity.

    Mechanism of electrophilic substitution: halogenation, nitration, Friedel Crafts alkylation and acylation, directive influence of the functional group in monosubstituted benzene.

    22.

    Organic Compounds Containing Halogens

    General methods of preparation, properties, and reactions.

    Nature of C-X bond.

    Mechanisms of substitution reactions.

    Uses, Environmental effects of chloroform, iodoform, freons, and DDT.

    23.

    Organic Compounds Containing Oxygen

    General methods of preparation, properties, reactions, and uses.

    Alcohols: Identification of primary, secondary and tertiary alcohols; mechanism of dehydration.

    Phenols: Acidic nature, electrophilic substitution reactions: halogenation, nitration, and sulphonation, Reimer Tiemann reaction.

    Ethers: Structure.

    Aldehyde and Ketones: Nature of carbonyl group; Nucleophilic addition to >C=O group, relative reactivities of aldehydes and ketones.

    Important reactions such as Nucleophilic addition reactions (addition of HCN, NH3 and its derivatives), Grignard reagent; oxidation; reduction (Wolff Kishner and Clemmensen); the acidity of hydrogen, aldol condensation, Cannizzaro reaction, Haloform reaction.

    Chemical tests to distinguish between aldehydes and Ketones.

    Carboxylic Acids: Acidic strength and factors affecting it.

    24.

    Organic Compounds Containing Nitrogen

    General methods of preparation, properties, reactions, and uses.

    Amines: Nomenclature, classification, structure, basic character and identification of primary, secondary and tertiary amines and their basic character.

    Diazonium Salts: Importance in synthetic organic chemistry.

    25.

    Polymers

    General introduction and classification of polymers, general methods of polymerization addition and condensation, co-polymerization.

    Natural and synthetic rubber and vulcanization.

    Some important polymers with emphasis on their monomers and uses, polyethene, nylon, polyester, and bakelite.

    26.

    Biomolecules

    General introduction and importance of biomolecules.

    Carbohydrates: Classification: aldoses and ketoses; monosaccharides (glucose and fructose), constituent monosaccharides or oligosaccharides (sucrose, lactose, maltose) and polysaccharides (starch, cellulose, glycogen).

    Proteins: Elementary Idea of amino acids, peptide bond, polypeptides; Proteins: primary, secondary, tertiary and quaternary structure (qualitative idea only), denaturation of proteins, enzymes.

    Vitamins: Classification and functions.

    B Chemical constitution of DNA and RNA. Biological functions of nucleic acids.

    27.

    Chemistry in Everyday Life

    Chemicals in medicines: Analgesics, tranquilizers, antiseptics, disinfectants, antimicrobials, antifertility drugs, antibiotics, antacids, antihistamines their meaning and common examples.

    Chemicals in food: Preservatives, artificial sweetening agents common examples.

    Cleansing agents: Soaps and detergents, cleansing action.

    28.

    Principles Related to Practical Chemistry

    Detection of extra elements (N, S, halogens) in organic compounds.

    Detection of the following functional groups: hydroxyl (alcoholic and phenolic), carbonyl (aldehyde and ketone), carboxyl and amino groups in organic compounds.

    The chemistry involved in the preparation of the following: Inorganic compounds: Mohr’s salt, potash alum, and Organic compounds: Acetanilide, p-nitro acetanilide, aniline yellow, iodoform.

    The chemistry involved in the titrimetric exercises: Acids bases and the use of indicators, oxalic-acid vs KMnO4, Mohr’s salt vs KMnO4.

    Chemical principles involved in the qualitative salt analysis: Cations: Pb2+, Cu2+, AI3+, Fe3+, Zn2+, Ni2+, Ca2+, Ba2+, Mg2+, NH4+, and Anions: CO32-, S2-, SO42-, NO2-, NO3-, CI-, Br, I. (Insoluble salts excluded).

    Chemical principles involved in the following experiments: Enthalpy of solution of CuSO4, Enthalpy of neutralization of strong acid and strong base, Preparation of lyophilic and lyophobic sols, and Kinetic study of the reaction of iodide ion with hydrogen peroxide at room temperature.

    Must Read


    Topic-wise Weightage

    Topic-wise Weightage of JEE Main Chemistry Syllabus 2020

    Chemistry questions are often well spread out amongst various topics, the topic wise weightage of chemistry questions with respect to number of questions and marks is as follows:

    Topics

    Number of Questions

    Marks

    Transition Elements and Coordination Chemistry

    3

    12

    Periodic table and Representative Elements

    3

    12

    Thermodynamics And Gaseous State

    2

    8

    Atomic Structure

    2

    8

    Chemical Bonding

    2

    8

    Chemical And Ionic Equilibrium

    2

    8

    Solid State And Surface Chemistry

    2

    8

    Nuclear Chemistry And Environment

    2

    8

    Mole Concept

    1

    4

    Redox Reaction

    1

    4

    Electrochemistry

    1

    4

    Chemical Kinetics

    1

    4

    Solution and Colligative Properties

    1

    4

    General Organic Chemistry

    1

    4

    Stereochemistry

    1

    4

    Hydrocarbon

    1

    4

    Alkyl Halides

    1

    4

    Carboxylic Acid and their Derivatives

    1

    4

    Carbohydrates,amino acid and Polymers

    1

    4

    Aromatic Compounds

    1

    4


    Video Lectures for Online Preparation

    Video Lectures for JEE Main Chemistry Preparation

    NTA has provided online video lectures by IIT Faculty and experts for the preparation of JEE Main Chemistry section . The steps to access the video lectures are as follows:

    • Visit the official website of NTA i.e. nta.ac.in.

    • Click on the “CONTENT BASED LECTURES - FOR JEE MAIN AND NEET-UG BY IIT PROFESSORS / SUBJECT EXPERTS” tab. 

    • You will be redirected to the page containing the name of different subjects. 

    • Choose the video lecture by clicking on the subject. 

    Direct Link to JEE Main Chemistry Video Lectures


    Chemistry Online Mock Tests

    JEE Main Chemistry Online Mock Tests

    Analyzing your approach towards the exam is one of the most important aspects of the preparation. One must constantly check if their strategies for the exam are accurate and how good their hold is on various concepts with the help of mock tests.

    NTA provides official mock tests for the assistance of candidates. These official mock tests can be accessed by the mock test from the official website of NTA i.e.nta.ac.in. A total of 18 mock tests have been released on the official website of NTA in which 15 tests are for Paper 1 while 3 are for Paper 2. Mock Tests can be accessed in English, Hindi, and Gujarati language. 

    Free online mock tests have been launched by BIE Telangana for candidates appearing for JEE Main 2020. It’s a unique platform where Telangana Education Department will be holding daily, weekly and grand mock tests series. For candidates who have android based smartphones, BIE has also launched a smartphone application that can help them take the mock tests conveniently using their phones.Click Here to Register 

    Must Read


    Difficulty Level Analysis

    Difficulty Level Analysis of JEE Main Chemistry January 2020 Session

    The level of difficulty of JEE Main Chemistry section varies in different sessions. For the understanding of candidates, a basic distribution of number of questions in terms of difficulty level of B.E/ B. Tech paper of JEE Main 2020 January session is tabulated below:

    Sections

    Tough

    Medium

    Easy

    Chemistry

    4

    11

    10

    Mathematics

    2

    10

    13

    Physics

    2

    7

    16

    Although as per the above analysis, chemistry seems to be the toughest section in the January B.E/ B.Tech paper but candidates must keep in mind that level of difficulty is a subjective concern and chemistry still remains one of the most quick in terms of attempting and scoring sections.


    Attempting Chemistry Section First

    Why should Candidates Attempt Chemistry First in JEE Main B.E/ B. Tech Paper?

    It is often advised by experts out of three sections of B.E/ B. Tech paper of JEE Main, chemistry should be attempted first. 

    • Chemistry questions include a major portion of fact based questions. Therefore solving them first will be a quick process. The extra time left can be then utilized for the physics and maths sections which are considered more time consuming. 

    • In chemistry too, It is a good move to start with questions of inorganic chemistry, for example, reading well through chapters like P, S-block and Classification of elements and periodicity in property. Questions from these topics are direct and can be answered through direct application of knowledge of concepts.

    •  Experts suggest that the entire JEE Main Chemistry section should be solved in not more than 40-45 minutes.

    • The advisable order within the chemistry section of B.E/ B. Tech paper is Inorganic chemistry ( 6- 8 min) followed by Organic chemistry ( 12- 15 min) followed by Physical chemistry ( 15 - 17 min). The 5 numerical value based questions have to be solved in the remaining time out of the total of 40-45 minutes.

    Must Read Interviews of JEE Main 2020 Toppers (NTA Score 100)


    Section-wise Tips by IITians

    Maximize your Score in JEE Main Chemistry with Section-wise Tips by IITians 

    How to tackle JEE Main Physical Chemistry?

    • Physical Chemistry is the most liked section of chemistry by almost every student because it requires no intense memorization of chemical reactions. Physical chemistry has a lot many constants and involves various calculations, so to excel in physical chemistry the golden rule is to practice as much as you can.
    • Class 11th Physical chemistry is relatively tougher than that of class 12th. Topics like Ionic Equilibrium and Thermodynamics are the toughest ones and requires in-depth knowledge of theory as well as practice to solve their questions on the day of examinations. NCERT textbook is the best for theory for both these chapters and for problem-solving, books of N. Avasthi book can be useful.
    • Topics like Atomic structure, Chemical Equilibrium, Gaseous state and Mole Concepts are easy and scoring too. Atomic structure must be focussed with greater efforts because the same chapter is in class 12th physics also and the content is almost same.
    • On the contrary to class 11th, the Physical Chemistry of class 12th is much easier and scoring too. Chapters like Solid State, Solutions, Chemical kinetics are easy which makes it easy to  score in physical chemistry. The only intriguing chapter in class 12th is Electrochemistry. This chapter also requires in-depth knowledge of theory then only you can solve questions of this chapter. The Level-2 problems in N. Avasthi book are really very good and will help you build a good foundation for this chapter.
    • Lastly, Surface Chemistry is a completely theoretical chapter but very rewarding because 1 question from this chapter directly from the NCERT textbook is present in both JEE Mains as well as in JEE Advanced.
    • Class 12th has more weightage than 11th. Topics like Solid State, Solutions, Chemical kinetics, Atomic Structure are easy and almost 2 questions from each of these chapters are present in every competitive exam. Thermodynamics, Ionic equilibrium and Electrochemistry are a bit tough so practice these topics more efficiently.

    For physical chemistry practice is the key to success, so books with good questions becomes very important. For theory preparation, read NCERT textbooks and class notes (of school or coaching) only because side books contain additional topics too which are not in the syllabus of any exam. For practicing questions refer books by:

    • N. Avasthi
    • P.Bahadur
    • R.C Mukharjee
    • O.P. Tandon

    How to tackle JEE Main Organic Chemistry?

    • Approximately 33% of the Chemistry questions in JEE Main are from Organic Chemistry with equal weightage to the syllabus of class XI and XII. Though questions from this section appear to be tough to some people, they consume very little time if one has proper knowledge of this section of the subject. 
    • The students should have a clear understanding of the facts and concepts of Organic chemistry while solving the questions because often the options are confusing and people make mistakes because of their vague understanding of facts. So, to have a clear understanding of the subject the first and foremost thing we should do is study NCERT thoroughly and complete all the exercises with full dedication because many times questions come directly from NCERT.
    • The most important topic in the subject is General Organic Chemistry because the concepts, mechanisms, and exceptions taught in this topic are used in all the later chapters of Organic Chemistry. 
    • There are some very easy topics that are in the JEE Mains syllabus which can fetch marks even if one prepares them a month before the exams. These topics are Biomolecules and polymers, Chemistry in Everyday Life, and Classification of elements in Organic Compound.
    • Organic Chemistry also requires a lot of practice because there are many variations of questions. But since questions from this section consume very little time so we can practice lots of questions. One should completely understand the concepts of resonance, acidity, and basicity and practice all sorts of questions related to these because these concepts are used in almost every Organic Chemistry chapter, and often question are asked to determine the order of acidity or basicity.
    • “One thing which I would suggest everyone do is to prepare a list of exceptional behaviors of reagents and substrates after every chapter as it would prove to be a very useful tool while revising the chapters. I would also suggest practicing solving Organic Chemistry questions for at least 30 to 45 minutes every day to gain complete mastery over the topics.”
    • The most important thing which can fetch very good marks in Organic Chemistry in both JEE Advanced and JEE Mains is the knowledge of mechanisms of reactions and the reagents used in the reactions because they determine what product would be formed in the reactions, so knowledge of these topics is a must. Aromatic compounds and their reactions are also very important, they come every year on the question paper. For example,
    JEE Main Chemistry

    •  For other reference books, one can use ‘MS Chauhan Organic Chemistry’, it contains a vast variety of questions which can help to get a complete understanding of the topics, and for theory, apart from NCERT, one can use ‘GRB Organic Chemistry by OP Tandon’ or ‘Organic Chemistry for JEE Main and Advanced by Ranjeet Shahi’. Apart from these books, solving past year questions is also a must-do for every student. 

    How to tackle JEE Main Inorganic Chemistry?

    • Inorganic chemistry makes up almost 50% of the plus two chemistry syllabus, even though it is a widely neglected topic due to the requirement of memorization of innumerable facts and exceptions rather than core concepts, unlike the organic part. 
    • However, this part also guarantees edge over the other co-participants if one can master it. Unlike organic chemistry which includes hundred of complex reaction mechanisms, grasping few concepts and continuous revision of exceptions on a daily basis will ensure an easy sail through the inorganic chapters. 
    • For higher secondary examination the marks distribution remains almost the same for both classes 11 and 12 which is 39/70. Hence more than half the paper is dedicated to the inorganic section which actually makes it scoring for students who have been wise enough to prepare this part.
    • Coming to the preparation strategy, all you need is NCERTS of class 11 -12 which comes in two parts, accompanied by just one good reference book. 
    • NCERTs cover all the basic concepts in a lucid way and each line of the book should be read thoroughly as many times as you require to grasp it. Keeping highlighters to mark the important lines is a good idea as many students do. You may keep a notebook to jot down important parts, reactions, and exceptions which you may revise later. Using sticky papers and keeping them within the chapters in the book itself is a better idea as it will help in quick revision whenever you open the books to glance through the chapters before your D-day.
    • The exceptions, important reactions as those from salt analysis, redox chapters, periodic tables can be drawn on sheets and stuck on the walls too as continuous visualization helps the memory to retain better.
    • Next is how much time one needs to allot for this section. This is an easier section which only needs your patience and memory. In a year-round approach, revise the chapters as they are taught in your schools or coaching center on the same day itself (p.s. don’t keep for last-minute revisions) and afterward keep revisiting them on weekends. 
    • After the syllabus is over, dedicate at least 1 hour to revise the chapters with special focus on exceptions every day, with time it will take lesser time, say 30-45 mins. Questions are mostly asked from exceptions and reactions in competitive exams, hence that should be the priority.
    • Some of the reference books referred by toppers are J.D Lee, O.P Tandon. And for problem-solving you can refer a book by Cengage publication or “problems in inorganic chemistry “by VK Jaiswal. Anyone and mind you just one is enough.
    •  For JEE Main, only 17-18 questions are asked on an average, plus two preparation (exceptions most importantly) along with lot of MCQs practice will be fine. Take notes of important points while you solve MCQs, that will really help you to cover all the topics in a shorter time. If reading doesn’t help, one may also refer the online videos by Byju ‘s and Kaysons as these are the best two.
    • NCERTs should act as your Bible supplemented with a lot of problem-solving. Consistent revision of all the concepts and exceptions will surely give you a perfect score in the subject.

    Preparation and Paper Attempting Tips

    JEE Main 2020 Chemistry- Preparation and Paper Attempting Tips

    Being the most scoring section, chemistry often turns out to be a major rank uplifter for one’s overall performance in JEE Main. However, chemistry is often proves troublesome in terms of preparation for candidates, here are some tips that can assist the candidates in their preparation for JEE Main Chemistry:

    • Use limited and accurate resources: Don’t try to cover the syllabus from multiple sources, you must practice from NCERT well. Other than that, you can read different concepts from a few acknowledged sources. Make voice notes or written notes and revise them regularly. 

    • Solve Questions Everyday: Retention is one of the factors resulting in a good attempt in the chemistry section, and retention can only be assured with practice. Candidates should make a habit of solving 40-50 questions on a daily basis. Whether you mix the questions from various topics or handle questions from a specific topic everyday totally depends on you.The way to maximize your score in Chemistry is to ensure a balance between analytical skills and memorization skills.

    • Identify answers through approximations: It is not wise to test your mathematics skills while solving the chemistry questions. You must remember that the time is limited and solve accordingly. Candidates can get an approximate answer and pick the option closest to it, unless the options are really close to each other.

    • Practice with previous year papers and mock tests: Practicing is the most essential component of your preparation as per all the experts. Practice and analyze your performance constantly to know the productivity of your current plan. 

    • Invest your time wisely: The importance of time management in the chemistry paper is of utmost importance, candidates can save time in direct questions and invest the same in questions that will take longer in terms of attemption. 


    Best Reference Books

    Best Reference Books to Cover JEE Main Chemistry Syllabus 2020

    While NCERT textbooks of class XI and XII are considered the best source of preparation for JEE Main Chemistry Section as many direct questions are asked form these texts, here is a list of some other books that can be of help to candidates:

    Authors/Publishers

    Books

    P Bahadur

    Concept of Physical Chemistry for JEE Main & Advanced 

    N Awasthi

    Physical Chemistry

    Solomons and Fryhle

    Organic Chemistry

    Morrison and Boyd

    Organic Chemistry

    R.K Gupta

    Arihant's Practice Book Chemistry for JEE Main And Advanced

    J D Lee

    Concise Inorganic Chemistry

    Freedman and Young

    University Chemistry

    MS Chauhan

    Elementary problems in Organic Chemistry

    O.P. Tandon

    Physical Chemistry; Organic Chemistry

    P.W.Atkins

    Physical Chemistry

    R.C. Mukherjee

    Modern Approach to Chemical Calculations

    *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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