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WBJEE 2025 CHEMISTRY SYLLABUS

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    WBJEE 2023 Chemistry Syllabus: Important Topics, Weightage, Preparation, Books

    WBJEE 2023 syllabus includes subjects such as Physics, Chemistry and Mathematics. The board more or less keeps the same WBJEE Syllabus which includes topics of class 11 and 12 curriculum of the West Bengal state board.

    WBJEE question paper is prepared according to the syllabus only. WBJEE 2023 will be conducted on April 30, 2023. Students must go through the chemistry syllabus to prepare for the exam. This article includes WBJEE Chemistry syllabus, preparation tips, and names of books that will help the students a lot throughout the preparation process.

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    Table of Contents

    1. WBJEE 2023 Chemistry Syllabus
    2. WBJEE Weightage of Important Topics
    3. WBJEE Marks Distribution From Previous Year Paper Analysis
    4. Category wise questions distribution:
    5. WBJEE Chemistry Previous Year’s Questions
    6. WBJEE Chemistry 2023 Preparation Tips
    7. WBJEE Chemistry 2023 Best Books
    8. WBJEE Chemistry Syllabus 2023 FAQs
    WBJEE Chemistry Syllabus

    WBJEE 2023 Chemistry Syllabus

    • The topics of Chemistry are mentioned below, which candidates must study in detail for WBJEE 2023.
    • Some of the important topics of Chemistry are- Chemical Kinetics, p-block Elements, s-block Elements, Chemical Thermodynamics, Coordination Compounds, Redox Reactions, etc.
    S.No.Topics
    1

    Atoms, Molecules and Chemical Arithmetic

    • Dalton’s atomic theory;
    • Gay Lussac’s law of gaseous volume;
    • Avogadro’s Hypothesis and its applications.
    •  Atomic mass; Molecular mass; Equivalent weight; Valency; Gram atomic weight; Gram molecular weight; Gram equivalent weight and mole concept; Chemical formulae; Balanced chemical equations;
    • Calculations (based on mole concept) involving common oxidation – reduction, neutralization, and displacement reactions;
    • Concentration in terms of mole fraction, molarity, molality and normality.
    •  Percentage composition, empirical formula and molecular formula; Numerical problems.
    2

    Atomic Structure

    • Concept of Nuclear Atom – electron, proton and neutron (charge and mass), atomic number.
    • Rutherford’s model and its limitations;
    • Extra nuclear structure; Line spectra of hydrogen atoms.
    • Quantization of energy (Planck’s equation E = hν);
    • Bohr’s model of hydrogen atom and its limitations,
    • Sommerfeld’s modifications (elementary idea);
    • The four quantum numbers, ground state electronic configurations of many electron atoms and mono – atomic ions;
    • The Aufbau Principle; Pauli’s Exclusion Principle and Hund’s Rule.
    •  Dual nature of matter and light, de Broglie's relationship, Uncertainty principle;
    • The concept of atomic orbitals, shapes of s, p and d orbitals (pictorial approach).
    3

    Radioactivity and Nuclear Chemistry

    • Radioactivity α-, β-, γ rays and their properties;
    • Artificial transmutation; Rate of radioactive decay, decay constant, half-life and average age life period of radio-elements; Units of radioactivity; Numerical problems.
    • Stability of the atomic nucleus – effect of neutron-proton (n/p) ratio on the modes of decay, group displacement law,
    • Radioisotopes and their uses (C, P, Co and I as examples) isobars and isotones (definition and examples),
    • Elementary idea of nuclear fission and fusion reactions.
    4

    The Periodic Table and Chemical Families

    • Modern periodic law (based on atomic number); Modern periodic table based on electronic configurations, groups (Gr. 1-18) and periods.
    • Types of elements – representative (s-block and p- block), transition (d-block) elements and inner transition (f-block/lanthanides and actinides) and their general characteristics.
    • Periodic trends in physical and chemical properties – atomic radii, valency, ionization energy, electron affinity, electronegativity, metallic character, acidic and basic characters of oxides and hydrides of the representative elements (up to Z = 36).
    • Position of hydrogen and the noble gases in the periodic table; Diagonal relationships.
    5

    Chemical Bonding and Molecular Structure

    • Valence electrons, the Octet rule, electrovalent, covalent and coordinate covalent bonds with examples;
    • Properties of electrovalent and covalent compounds. Limitations of Octet rule (examples);
    • Fajans Rule.
    • Directionality of covalent bonds, shapes of poly – atomic molecules (examples);
    • Concept of hybridization of atomic orbitals (qualitative pictorial approach): sp, sp2, sp3 and dsp2.
    • Molecular orbital energy diagrams for homonuclear diatomic species – bond order and magnetic properties.
    • Valence Shell Electron Pair Repulsion (VSEPR) concept (elementary idea) – shapes of molecules. Concept of resonance (elementary idea), resonance structures (examples).
    • Elementary idea about electronegativity, bond polarity and dipole moment, inter- and intramolecular hydrogen bonding and its effects on physical properties (mp, bp and solubility);
    • Hydrogen bridge bonds in diborane.
    6

    Coordination Compounds

    • Introduction,
    • Double salts and complex salts, coordination compounds (examples only),
    • Werner's theory, coordination number (examples of coordination number 4 and 6 only),
    • Colour, magnetic properties and shapes,
    • IUPAC nomenclature of mononuclear coordination compounds.
    7

    Solid State

    • Classification of solids based on different binding forces: molecular, ionic, covalent and metallic solids, amorphous and crystalline solids (elementary idea).
    • Unit cell in two dimensional and three dimensional lattices, calculation of density of unit cell, packing in solids, packing efficiency, voids, number of atoms per unit cell in a cubic unit cell,
    • Point defects, electrical and magnetic properties.
    • Band theory of metals, conductors, semiconductors and insulators and n & p type semiconductors.
    8

    Liquid State

    • Vapour pressure,
    • Viscosity and surface tension (qualitative idea only, no mathematical derivations).
    9

    Gaseous State

    • Measurable properties of gases.
    • Boyle’s Law and Charles Law, absolute scale of temperature, kinetic theory of gases, ideal gas equation – average, root mean square and most probable velocities and their relationship with temperature.
    • Dalton's Law of partial pressure, Graham's Law of gaseous diffusion.
    •  Deviations from ideal behavior.
    • Liquefaction of gases, real gases, van der Waals equation; Numerical problems.
    10

    Chemical Energetics and Chemical Dynamics

    • Chemical Energetics – Conservation of energy principle, energy changes in physical and chemical transformations.
    • First law of thermodynamics; Internal energy, work and heat, pressure – volume work;
    • Enthalpy. Internal energy change (ΔE) and Enthalpy change (ΔH) in a chemical reaction.
    • Hess's Law and its applications (Numerical problems).
    • Heat of reaction, fusion and vaporization;
    • Second law of thermodynamics; Entropy; Free energy; Criterion of spontaneity.
    • Third law of thermodynamics (brief introduction).
    • Chemical Equilibria – The Law of mass action, dynamic nature of chemical equilibria. Equilibrium constants, Le Chatelier's Principle.
    •  Equilibrium constants of gaseous reactions (Kp and Kc) and relation between them (examples).
    • Significance of ΔG and ΔGº.
    • Chemical Dynamics – Factors affecting the rate of chemical reactions (concentration, pressure, temperature, catalyst), Concept of collision theory. Arrhenius equation and concept of activation energy.
    • Order and molecularity (determination excluded); First order reactions, rate constant, half – life (numerical problems), examples of first order and second order reactions.
    11

    Physical Chemistry of Solutions

    • Colloidal Solutions – Differences from true solutions;
    • Hydrophobic and hydrophilic colloids (examples and uses); Coagulation and peptization of colloids;
    • Dialysis and its applications; Brownian motion; Tyndall effect and its applications;
    • Elementary idea of emulsion, surfactant and micelle.
      Electrolytic Solutions – Specific conductance, equivalent conductance, ionic conductance, Kohlrausch’s law, Faraday’s laws of electrolysis, applications. Numerical problems.
    • Non-electrolytic Solutions – Types of solution, vapour pressure of solutions. Raoult’s Law;
    • Colligative properties – lowering of vapour pressure, elevation of boiling point, depression of freezing point, osmotic pressure and their relationships with molecular mass (without derivations);
    • Numerical problems.
    12

    Ionic and Redox Equilibria

    • Ionic equilibria – ionization of weak electrolytes, Ostwald’s dilution law.
    •  Ionization constants of weak acids and bases, ionic product of water, the pH – scale, pH of aqueous solutions of acids and bases;
    • Buffer solutions, buffer action and Henderson equation.
    • Acid-base titrations, acid – base indicators (structures not required).
    • Hydrolysis of salts (elementary idea), solubility product, common ion effect (no numerical problems).
    • Redox Equilibria: Oxidation – Reduction reactions as electron transfer processes, oxidation numbers, balancing of redox reactions by oxidation number and ion-electron methods.
    • Standard electrode potentials (E°), Electrochemical series, feasibility of a redox reaction.
    • Significance of Gibb’s equation: ΔG° = – nFΔE° (without derivation), no numerical problems.
    • Redox titrations with (examples); Nernst equations (Numerical problems).
    13

    Hydrogen

    • Position of hydrogen in periodic table, occurrence, isotopes, preparation, properties and uses of hydrogen, hydrides-ionic covalent and interstitial;
    • Physical and chemical properties of water, heavy water, hydrogen peroxide – preparation, reactions and structure and use; hydrogen as a fuel.
    14

    Chemistry of Non-Metallic Elements and their Compounds

    • Carbon – occurrence, isotopes, allotropes (graphite, diamond, fullerene); CO and CO2 production, properties and uses
    • Nitrogen and Phosphorus – occurrence, isotopes, allotopes, isolation from natural sources and purification, reactivity of the free elements.
    • Preparation, properties, reactions of NH3, PH3, NO, NO2, HNO2, HNO3, P4O10, H3PO3 and H3PO4
    • Oxygen and Sulphur – Occurrence, isotopes, allotropic forms, isolation from natural sources and purification, properties and reactions of the free elements.
    • Water, unusual properties of water, heavy water (production and uses). Hydrogen peroxide and ozone (production, purification, properties and uses).
    • Halogens – comparative study, occurrence, physical states and chemical reactivities of the free elements, peculiarities of fluorine and iodine; Hydracids of halogens (preparation, properties, reactions and uses), interhalogen compounds (examples);
    • Oxyacids of chlorine
    15

    Chemistry of Metals

    • General principles of metallurgy – occurrence, concentration of ores, production and purification of metals, mineral wealth of India.
    • Typical metals (Na, Ca, Al, Fe, Cu and Zn) – occurrence, extraction, purification (where applicable), properties and reactions with air, water, acids and non metals.
    • Manufacture of steels and alloy steel (Bessemer, Open-Hearth and L.D. process)
    • Principles of chemistry involved in electroplating, anodizing and galvanizing
      Preparation and properties of K2Cr2O7 and KMnO4
    • Lanthanoids – Electronic configuration, oxidation states, chemical reactivity and lanthanoid
    • contraction and its consequences
    • Actinides – Electronic configuration, oxidation states and comparison with lanthanide
    16

    Chemistry in Industry

    • Large scale production (including physicochemical principles where applicable, omitting technical details) and uses of Sulphuric acid (contact process),
    • Ammonia (Haber’s process), Nitric acid (Ostwald’s process), sodium bi-carbonate and sodium carbonate (Solvay process)
    17

    Polymers

    • Natural and synthetic polymers, methods of polymerization (addition and condensation), copolymerization,
    • Some important polymers – natural and synthetic like polythene, nylon polyester, bakelite, rubber.
    • Biodegradable and non-biodegradable polymers
    18

    Surface Chemistry

    • Adsorption – physisorption and chemisorption, factors affecting adsorption of gases on solids, catalysis, homogenous and heterogenous activity and selectivity;
    • enzyme catalysis colloidal state distinction between true solutions, colloids and suspension; lyophilic , lyophobic multimolecular and macromolecular colloids;
    • properties of colloids; Tyndall effect, Brownian movement, electrophoresis, coagulation, emulsion – types of emulsions
    19

    Environmental Chemistry

    • Common modes of pollution of air, water and soil.
    • Ozone layer, ozone hole – important chemical reactions in the atmosphere, Smog; major atmospheric pollutants; GreenHouse effect;
    • Global warming – pollution due to industrial wastes, green chemistry as an alternative tool for reducing pollution, strategies for control of environment pollution
    20

    Chemistry of Carbon Compounds

    • Hybridization of carbon: σ – and π – bonds
    • Isomerism – constitutional and stereoisomerism;
    • Geometrical and optical isomerism of compounds containing upto two asymmetric carbon atoms.
    • IUPAC nomenclature of simple organic compounds – hydrocarbons, mono and bifunctional molecules only (alicyclic and heterocyclic compounds excluded) Conformations of ethane and n-butane (Newman projection only)
    • Electronic Effects: Inductive, resonance and hyperconjugation.
    • Stability of carbocation, carbanion and free radicals; Rearrangement of carbocation;
    • Electrophiles and nucleophiles, tautomerism in β-dicarbonyl compounds, acidity and basicity of simple organic compounds
    21

    Compounds

    • Alkanes – Preparation from alkyl halides and carboxylic acids; Reactions — halogenation and combustion
    • Alkenes and Alkynes – Preparation from alcohols;
    • Formation of Grignard reagents and their synthetic applications for the preparation of alkanes, alcohols, aldehydes, ketones and acids;
    • SNl and SN2 reactions (preliminary concept).
    • Markownikoff’s and anti-Markovnikov's additions; Hydroboration; Oxymercuration-demercuration, reduction of alkenes and alkynes (H2/Lindler catalyst and Na in liquid NH3), metal acetylides
    22

    Haloalkanes and Haloarenes

    • Haloalkanes – Preparation from alcohols;
    • Nomenclature, nature of C -X bond, physical and chemical properties, mechanism of substitution reactions, optical rotation
    • Formation of Grignard reagents and their synthetic applications for the preparation of alkanes, alcohols, aldehydes, ketones and acids; SN1 and SN2 reactions (preliminary concept)
    • Uses and environmental effects of - dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons, DDT
    23

    Alcohol

    • Preparation of alcohols from carbonyl compounds and esters.
    • Reaction – dehydration, oxidation, esterification, reaction with sodium, ZnCl2/HCl, phosphorus halides
    • Ethers – Preparation by Williamson’s synthesis;
    • Cleavage with HCl and HI
      Aldehydes and Ketones – Preparation from esters, acid chlorides, gem-dihalides,
    • Ca-salt of carboxylic acids. Reaction – Nucleophilic addition with HCN, hydrazine, hydroxyl amines, semi carbazides, alcohols; Aldol condensation, Clemmensen and Wolff – Kishner reduction, haloform, Cannizzaro and Wittig reactions
    • Carboxylic Acids – Hydrolysis of esters (mechanism excluded) and cyanides; Hunsdicker and HVZ reactions
    • Aliphatic Amines – Preparation from nitro, cyano and amino compounds. Distinction of 1º, 2º and 3º amines (Hinsberg method); Reaction with HNO2; Carbylamine reaction
    24

    Aromatic Compounds

    • Benzene – Kekule structure, aromaticity and Hückel rule. Electrophilic substitution – halogenation, sulfonation, nitration, Friedel Crafts reaction, ozonolysis
    • Directive influence of substituents in monosubstituted benzenes. Carcinogenicity and toxicity
    • Amines – Preparation from reduction of nitro compounds; Formation of diazonium salts and their stability;
    • Replacement of diazonium group with H, OH, X (halogen), CN and NO2, diazo coupling and reduction
    • Haloarenes – Nature of C -X bond, substitution reactions; Nucleophilic substitution, cine substitution (excluding mechanism, Directive influence of halogen in monosubstituted compounds only)
    • Phenols – halogenation, sulfonation, nitration, Reimer – Tiemann and Kolbe reactions
    • Aromatic Aldehydes – Preparation by Gattermann, Gattermann-Koch, Rosenmund and Stephen’s method. Reactions – Perkin, Benzoin and Cannizzaro
    25

    Application Oriented chemistry

    • Main ingredients, their chemical natures (structures excluded) and their side effects, if any, of common antiseptics, analgesics, antacids, vitamin-C
    26

    Introduction to Biomolecules

    • Carbohydrates – Pentoses and hexoses. Distinctive chemical reactions of glucose.
    • Amino Acids – glycine, alanine, aspartic acid, cysteine (structures). Zwitterion structures of amino acids, peptide bonds.
    • ADP and ATP – structures and role in bioenergetics; Nucleic acids – DNA and RNA skeleton structures. Names of essential elements in biological system
    27

    Principles of Qualitative Analysis

    • Detection of water soluble non-interfering Acid and Basic Radicals by dry and wet tests from among: Acid Radicals: Cl-, S2-, SO42-, NO3–, CO32-. Basic Radicals: Cu2+, Al3+, Fe3+, Fe2+, Zn2+, Ca2+, Mg2+, Na+, NH4+
    • Detection of special elements (N, Cl, Br, I and S) in organic compounds by chemical tests.
    • Identification of functional groups in: phenols, aromatic amines, aldehydes, ketones and carboxylic acids.

    Also Check:WBJEE Cutoff

    WBJEE Weightage of Important Topics

    WBJEE Weightage of Important Topics

    Weightage from important chapters from WBJEE 2023 chemistry is mentioned below:

    TopicsChapter Weightage
    p- Block Elements6%
    Redox Reactions5%
    Ionic Equilibrium4%
    Chemical Equilibrium4%
    Coordination Compounds4%
    Carboxylic Acids & Derivatives4%
    Alcohol Phenol Ether4%
    Chemical Thermodynamics4%
    Chemical Kinetics7%
    Chemical Bonding6%
    Transition Elements (d & f block)6%
    S block elements6%
    Organic Chemistry6%
    WBJEE Marks Distribution From Previous Year Paper Analysis

    WBJEE Marks Distribution From Previous Year Paper Analysis

    The marks distribution of important topics are mentioned below:

    Category I (Full Marks-2)Category II (Full Marks-2)Category III (Full Marks-2)Total Number of QuestionsTotal Marks
    30554050
    Category wise questions distribution:

    Category wise questions distribution:

    TopicsCategory I (Full Marks-1)Category II (Full Marks-2)Category III (Full Marks-2)
    No. of QuestionsNo. of QuestionsNo. of Questions
    Chemical Bonding20-10-1
    P-Block Elements200
    Chemical Kinetics200
    D&F Block Elements10-10-1
    Basic Organic Chemistry10-10-1
    Coordination Compounds201
    Chemical + Ionic Eq.110
    Metallurgy100
    Mole Concept + Redox Reaction100
    Atomic Structure100
    Aldehyde, Ketone & Carboxylic200

    Check:WBJEE Paper Analysis

    WBJEE Chemistry Previous Year’s Questions

    WBJEE Chemistry Previous Year’s Questions

    These are some important question from the previous year papers for analysis-

    1. The electronic configuration of Cu is-

    (A) Ne3s23p63d94s2

    (B) Ne3s23p63d104s1

    (c)Ne3s23p63d54s2

    (D)Ne3s23p63d94s24p6

    2. At a certain temperature the time required for the complete diffusion of 200 mL of H2 gas is 30 minutes. The time required for the complete diffusion of 50 mL of 02 gas at the same temperature will be

    (A)160 minutes (B)30 minutes (C)45 minutes (D) 15 minutes

    3. During the emission of a positron from a nucleus, the mass number of the daught6relement remains the same but the atomic number

    (A) is decreased by 1 unit

    (b) is decreased by 2 unit

    (c) is increased by 1 unit

    (D) remains unchanged

    WBJEE Chemistry Preparation Tips

    WBJEE Chemistry 2023 Preparation Tips

    Some important WBJEE 2023 Preparation Tips are mentioned below:

    • Candidates must go through WBJEE 2023 syllabus and highlight the important topics.
    • Candidates should make a time table to revise the entire syllabus before time.
    • Candidates should practise solving questions from some reference books.
    • Candidates must practice sample papers, mock tests and previous year question papers of WBJEE 2023 to memorise the answer patterns.
    WBJEE Chemistry Best Books

    WBJEE Chemistry 2023 Best Books

    Best books of chemistry for WBJEE 2023 are available in the market-

    Name of BooksAuthors
    NCERT Chemistry (Best Recommended Book for WBJEE)--
    Dinesh ChemistryDinesh
    Concise Inorganic ChemistryJ. D. LEE
    Handbook of ChemistryR.P. Singh
    Numerical ChemistryP. Bahadur
    Modern Approach to Chemical CalculationsR.C. Mukherjee
    WB JEE Chapter wise Explorer ChemistryMTG Editorial Board
    Chemistry Syllabus FAQs

    WBJEE Chemistry Syllabus 2023 FAQs

    Ques. What are the total marks for WBJEE 2023?

    Ans. Total marks for Mathematics, Physics and Chemistry are 100, 50 and 50 respectively.

    Ques. What are the important topics for WBJEE 2023 Chemistry?

    Ans. The important topics for WBJEE 2023 Chemistry are-

    • Chemical Kinetics
    • Chemical Bonding
    • Block elements

    Ques. In which shift will WBJEE 2023 Chemistry exam occur?

    Ans. WBJEE 2023 Chemistry exam will occur in the afternoon shift at 2:00 pm – 4:00 pm.

    Ques. Are there any changes to WBJEE 2023 Chemistry syllabus?

    Ans. No, there are no changes to WBJEE 2023 Chemistry syllabus.

    Ques. Is it very difficult to get a good score in WBJEE 2023 Chemistry?

    Ans. No, it is not very difficult to do well in WBJEE 2023 Chemistry. By practising previous year question candidates can easily get 85% - 90% marks.

    Ques. How many chapters are there in the chemistry section of WBJEE 2023?

    Ans. There are a total of 27 chapters in the chemistry section of WBJEE 2023.

    Ques. Is it important to practise all the chapters from class 11th to 12th ?

    Ans. Yes, all the chapters from class 11th to 12th are important for WBJEE.

    Ques. What is the basic book for practising Chemistry for WBJEE 2023?

    Ans. NCERT Chemistry is the basic book for practicing WBJEE 2023 Chemistry.

    *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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