Candidates preparing for JEE Main chemistry Revision Notes can check here chapter-wise syllabus with weightage. Every year NTA releases the official PDF for JEE Main Chemistry syllabus for the exam of both Paper 1 and Paper 2 in Jene and July 2022. JEE Main Chemistry Revision notes comprise of three different parts which are Physical Chemistry, Organic Chemistry, and Inorganic Chemistry. The complete Chemistry syllabus carries a total weightage of 33.3% i.e (360 Marks) which can be answered within 50 minutes.
JEE Main Chemistry Notes
JEE Main Chemistry is just around the corner. It is now that students require to shift gear if they want to pass one of the most coveted engineering entrance exams. It is time to move to a smarter preparation that will work for you. JEE Chemistry is one of those subjects that are scoring and it appears to be a key one for JEE Main 2022. Since the JEE Main syllabus 2022 is vast and your preparation covers the board exams too, it is right that you study at the priorities facing you. SelfStudys brings you the JEE Main Chemistry Notes to help you work towards progress in your goal.
If a student dreams to pursue engineering from one of the best NITs or IIITs or even the good GFTIS, understanding JEE Main preparation tips that allow cracking the exam becomes mandatory. NTA will conduct JEE Main twice a year. The first session will be conducted from June 23to 29whereas, and the second session will be held from July21to 30, 2022. The Paper I will be fully computer-based, whereas Paper-II will be held part computer-based and part pen-and-paper based. JEE Main Chemistry revision notes will aid the students to draw a clear plan so that they have a good possibility of cracking the exam. Some tricks of the trade, if followed can help the students sail through the exam with ease. Some of the valuable JEE Main Chemistry notes include management of time during preparation and the exam, the important chapters, and topics to focus on as per weightage gave, practising with the previous year question paper, sample papers and taking mock tests on a regular base to name few. Knowing the chapter-wise analysis from the past year papers is another useful tool while preparing for JEE Main Chemistry.
Short notes and flashcards for JEE Main Chemistry Preparation:
One of the major aspects of JEE Main Chemistry Preparation Tips is that you must make short notes as you go through each of the chapters. This is a good reference tactic during the last days of the examination as it allows you to check the chapters without opening the textbook and going in detail.
Make Flashcards for the formulas and chapters you feel you need to be clear with. Just a look during the last days will sort them out for you.
JEE Main Chemistry Preparation Tips:
Manage Time Well: One of the most important Chemistry preparation tips is time management. Students should make a timetable and must ensure that they adhere to it. Within specified time they should finish the syllabus. For these students must make certain goals. Depending on the difficulty level of the chapter, a student must decide for themselves in how many times they will be able to finish it. Before moving towards the new chapters, students must ensure that they finish the previous one. Revise completely as it will prove fruitful for the students a month or fortnight before the examination.
Be Thorough with the Syllabus: Students must be well versed in the syllabus of JEE Main Chemistry. They should know the chapters from which the questions will be asked. This will support them to divide their time. Hence JEE Main Chemistry preparation tips include being extremely thorough with the syllabus of JEE Main. Along with the syllabus, students are advised to be familiar with the JEE Main examination pattern.
Important Books for JEE Main: While preparing for the engineering exam, students must prepare for the best kind of books. Beating about the bush will not produce the desired result. Students should not use too various reference books. They should commence their preparation by going through the NCERT Books Class 12 and also go through the study material that is given by the coaching centre from where they have studied. This JEE Main Chemistry preparation tips related to studying from the right books hold a lot of significance since students cannot afford to waste their time preparing for unsuitable study material.
Start your JEE Main Chemistry preparation early: JEE Main Chemistry is a tough exam and if you half-prepared there may be possibilities that you may lose it. So, to succeed you want to prepare well. And preparing well, in essence, means preparing advanced. Now must have a question, why start early? As an early starter, you will have time to twitch your preparation if you run off track. For example, if you are staggering in a particular chapter or topic, you will have time to choose if coaching is the way forward, or you require some other type of intervention. With sufficient time to prepare, you will be ready to keep things under control and not panic as examination date approaches, assuming you use your time reading and practising the hard questions.
Refer recommended books:Buy the book and solution that you can follow and reach every chapter of the syllabus in detail. Solution will have lots of examples to aid comprehension of concepts. They will also have fewer mistakes and ambiguous comments. NCERT Chemistry Class 11 and 12 books are an example of good books and are a good material to build preliminary concepts. Also, note not all solutions by foreign writers are good, just like not all Indian authors are bad. JD Lee is a great asset for the physical chemistry section, while Modern Approach to Chemical Calculations by RC Mukherjee is an equally good book for mastering numerical problems.As a note of warning, avoid solutions that use language that is too tough or is too advanced.
NCERT Books: NCERT Chemistry books on their own are not enough to answer all question asked in JEE Main Chemistry, and you have to read other writer books as well for holistic JEE Main preparation. But that being said they are the most solid material for building the fundamentals of all the chapters included in the syllabus. You must particularly pay attention to the highlighted exercises presented in these NCERT books, as they are the key to knowing basic theories of the chemistry and pave the way for you to know concepts you will come across in higher-level chemistry texts such as Atkins.To get more of these books, practising questions from NCERT Chemistry Exemplar is also recommended.
As we know, it is important to understand the JEE Main Chemistry syllabus and important chapters, which will help you in preparation for JEE Main accordingly. Moreover, you can also download the JEE Main Chemistry Notes PDF at the end of the post.
Below is the breakdown of each section asked under JEE Main Chemistry syllabus along with weightage:
| Sections | Questions Asked in April 2021 | Questions Asked in Jan 2021 |
| Inorganic Chemistry | 8 | 10 |
| Organic Chemistry | 12 | 11 |
| Physical Chemistry | 10 | 9 |
JEE Main Chemistry Weightage
Below is the detailed section-wise weightage of different sections under JEE Main Chemistry Syllabus:
Now, let's check out the detailed chapter wise JEE Main 2020 syllabus for Chemistry to cover the most important topics and plan the exam strategy accordingly along with the reference books for JEE Main Chemistry.
JEE Main Physical Chemistry Syllabus
UNIT 1 -Some Basic Concepts in Chemistry
- Matter and its nature
- Dalton’s atomic theory
- Concept of 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
UNIT 2 - States of Matter
Classification of matter into solid, liquid & gaseous states.
| Gaseous State | Liquid State | Solid State |
| Measurable properties of gases; Gas laws - Graham’s law of diffusion, Avogadro’s law, Dalton’s law of partial pressure; Boyle’s law, Charle’s law, Concept of Absolute scale of temperature; Ideal gas equation, Kinetic theory of gases (only postulates); Real gases, deviation from Ideal behavior, compressibility factor, Concept of average, root mean square and most probable velocities; van-der Waals equation. | Properties of liquids - vapour pressure, viscosity and surface tension and effect of temperature on them (qualitative treatment only). | Classification of solids: molecular, ionic, amorphous and crystalline solids (elementary idea); Bragg’s Law and its applications; Unit cell and lattices, covalent and metallic solids, imperfection in solids; Electrical, packing in solids (FCC, BCC and HCP lattices), voids, calculations involving unit cell parameters, magnetic and dielectric properties. |
UNIT 3 -Atomic Structure
I. Atomic Models
- Thomson and Rutherford atomic models and their limitations
- Discovery of sub-atomic particles (electron, proton and neutron)
Nature of electromagnetic radiation
- Photoelectric effect
- Spectrum of hydrogen atom
- 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’s relationship
- Bohr model of hydrogen atom - its postulates
- Heisenberg uncertainty principle
II.Quantum Model of Atom
- Elementary ideas of quantum mechanics
- Quantum mechanical model of atom, its important features
- Rules for filling electrons in orbitals - Aufbau principle
- Pauli’s exclusion principle and Hund’s rule
- Electronic configuration of elements
- Concept of atomic orbitals as one electron wave functions
- Variation of Ψ 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
- Extra stability of half-filled and completely filled orbitals
UNIT 4 -Chemical Bonding and Molecular Structure
1.Kossel:
- Concept of ionic and covalent bonds
- Lewis approach to chemical bond formation
2. Ionic Bonding:
- Formation of ionic bonds
- Calculation of lattice enthalpy
- Factors affecting the formation of ionic bonds
3. Covalent Bonding:
- Concept of electronegativity
- Dipole moment
- Fajan’s rule
- Valence Shell Electron Pair Repulsion (VSEPR) theory and shapes of simple molecules
4.Quantum mechanical approach to covalent bonding:
- Valence bond theory - Its important features
- Resonance
- Concept of hybridization involving s, p and d orbitals
5.Molecular Orbital Theory:
- Its important features
- LCAOs
- Types of molecular orbitals (bonding, antibonding)
- Sigma and pi-bonds
- Molecular orbital electronic configurations of hom*onuclear diatomic molecules
- Concept of bond order
- Bond length and bond energy
6.Elementary idea of metallic bonding. Hydrogen bonding and its applications.
UNIT 5 -Chemical Thermodynamics
| Fundamentals of thermodynamics | First law of thermodynamics | Second law of thermodynamics |
| System and surroundings, extensive and intensive properties, types of processes,state functions, | Concept of work, heat capacity, molar heat, heat internal energy and enthalpy, capacity; Hess’s law of constant heat summation; Enthalpies of bond dissociation, sublimation, phase transition, hydration, combustion, formation, atomization, ionization and solution | Spontaneity of processes; ΔGo (Standard Gibbs energy change) and equilibrium constant, ΔS of the universe and ΔG of the system as criteria for spontaneity. |
UNIT 6 -Solutions
- Different methods for expressing the concentration of solution - molality
- Molarity
- Mole fraction
- Vapor 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
- Percentage (by volume and mass both)
- Depression of freezing point
- Abnormal value of molar mass
- Van’t Hoff factor and its significance
- Elevation of boiling point and osmotic pressure
- Determination of molecular mass using colligative properties
UNIT 7 -Equilibrium
Meaning of equilibrium, the concept of dynamic equilibrium.
Equilibria involving physical processes:
- Solid -liquid
- Henry’s law
- Liquid - gas and solid - gas equilibria
- General characteristics of equilibrium involving physical processes.
Equilibria involving chemical processes:
- Law of chemical equilibrium
- Equilibrium constants (Kp and Kc) and their significance
- Temperature
- Effect of catalyst
- Le Chatelier’s principle
- Significance of ΔG and ΔGo in chemical equilibria
- Factors affecting equilibrium concentration
- Pressure
Ionic equilibrium:
- Weak and strong electrolytes
- Ionization of electrolytes
- Various concepts of acids and bases (Arrhenius, Bronsted - Lowry and Lewis) and their ionization
- The solubility of sparingly soluble salts and solubility products
- Buffer solutions
- 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
UNIT 8 - Redox Reactions and Electrochemistry
- Electronic concepts of oxidation and reduction
- Redox reactions, oxidation number
- Rules for assigning oxidation number
- Specific and molar conductivities and their variation with concentration
- Kohlrausch’s law and its applications
- Balancing of redox reactions
- Electrolytic and metallic conduction
- Conductance in electrolytic solutions
Electrochemical cells:
- Electrolytic and Galvanic cells
- Dry cell and lead accumulator
- Fuel 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
- Corrosion and its prevention
UNIT 9 - Chemical Kinetics
- Rate of a chemical reaction
- Elementary and complex reactions
- Order and molecularity of reactions
- Factors affecting the rate of reactions: concentration, temperature, pressure and catalyst
- Rate law, rate constant and its units, differential and integral forms of zero and first-order reactions, their characteristics and half-lives
- Effect of temperature on the rate of reactions - Arrhenius theory, activation energy and its calculation
- collision theory of bimolecular gaseous reactions (no derivation)
UNIT 10 - Surface Chemistry
| Adsorption | Catalysis | Colloidal State |
| Physisorption and chemisorption and their characteristics, factors affecting the adsorption of gases on solids - Freundlich and Langmuir adsorption isotherms, adsorption from solutions. | activity and selectivity of solid catalysts, hom*ogeneous and heterogeneous, enzyme catalysis and its mechanism. | distinction among true solutions, colloids and suspensions, lyophobic; multi molecular, macromolecular and associated colloids (micelles), classification of colloids - lyophilic, preparation and properties of colloids - Tyndall effect, dialysis, Brownian movement, electrophoresis, coagulation and flocculation; Emulsions and their characteristics. |
JEE Main Inorganic Chemistry Syllabus
UNIT 11 -Classification of Elements and Periodicity in Properties
- Modem periodic law and present form of the periodic table, s, p, d and f block elements
- Periodic trends in properties of elementsatomic and ionic radii
- Oxidation states and chemical reactivity
- Ionization enthalpy
- Electron gain enthalpy
- Valence
UNIT 12 -General Principles and Process of Isolation of Metals
- Modes of occurrence of elements in nature, minerals, ores
- Thermodynamic and electrochemical principles involved in the extraction of metals
- 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
UNIT 13 - Hydrogen
- Position of hydrogen in the periodic table
- Isotopes, preparation, properties and uses of hydrogen
- Classification of hydrides - ionic, covalent and interstitial
- Hydrogen as a fuel
- Physical and chemical properties of water and heavy water
- Structure, preparation, reactions and uses of hydrogen peroxide
UNIT 14 -S Block Elements (Alkali and Alkaline Earth Metals)
Group 1 and Group 2 Elements
I. General Properties
- General introduction
- Diagonal relationships
- Electronic configuration and general trends in physical and chemical properties of elements
- Anomalous properties of the first element of each group
II. Compounds of s-block elements
- Preparation and properties of some important compounds - sodium carbonate, sodium chloride, sodium hydroxide and sodium hydrogen carbonate
- Biological significance of Na, K, Mg and Ca
- Industrial uses of lime, limestone, Plaster of Paris and cement.
UNIT 15 - PBlock Elements
Group 13 to Group 18 Elements
- Groupwise study of the p–block 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 every group.
| Group 13 | Preparation, properties and uses of boron and aluminium; Structure, boric acid, diborane, properties and uses of borax, boron trifluoride, aluminium chloride and alums. |
| Group 14 | Tendency for catenation; Structure, properties and uses of allotropes and oxides of carbon, zeolites, silicon tetrachloride, silicates and silicones. |
| Group 15 | Properties and uses of nitrogen and phosphorus; Allotrophic forms of phosphorus; nitric acid, phosphine and phosphorus halides, Preparation, properties, structure and uses of ammonia, (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 sulphur; properties, Preparation, structures and uses of sulphur dioxide, sulphuric acid (including its industrial preparation); Structures of oxoacids of sulphur. |
| 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 oxoacids of halogens. |
| Group 18 | Occurrence and uses of noble gases; Structures of fluorides and oxides of xenon. |
UNIT 16 - Dand FBlock Elements
| Transition Elements | Inner Transition Elements |
| General introduction, electronic configuration, occurrence and characteristics, ionization enthalpy, oxidation states, atomic radii, colour, general trends in properties of the first-row transition elements - physical properties, catalytic behaviour, complex formation, interstitial compounds, magnetic properties, alloy formation; Preparation, properties and uses of K2Cr2O7 and KMnO4. |
|
UNIT 17 - Co-ordination Compounds
- Introduction to coordination compounds, Werner’s theory
- IUPAC nomenclature of mononuclear coordination compounds, isomerism
- Ligands, co-ordination number, denticity, chelation
- 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)
JEE Main Organic Chemistry Syllabus
UNIT 18 - 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: Double bonds, triple bonds,oxygen and those containing halogens, nitrogen and sulphur; hom*ologous series; Isomerism - structural and stereoisomerism.Nomenclature (Trivial and IUPAC)
- Covalent bond fission - hom*olytic and heterolytic -free radicals, carbocations and carbanions; stability of carbocations and electrophiles, free radicals and nucleophiles.
- Electronic displacement in a covalent bond -Inductive effect, resonance and hyperconjugation, electromeric effect.
- Common types of organic reactions -addition, Substitution, elimination and rearrangement.
UNIT 19 - Purification and Characterisation of Organic Compounds
| Purification | Qualitative analysis | Quantitative analysis (basic principles only) | Calculations of empirical formulae and molecular formulae |
| Crystallization, sublimation, distillation, differential extraction and chromatography - principles and their applications. | Detection of nitrogen, phosphorus, sulphur and halogens. | Estimation of carbon, halogens, hydrogen, nitrogen, sulphur, phosphorus. | Numerical problems in organic quantitative analysis. |
UNIT 20 -Hydrocarbons
- Classification
- General methods of preparation, properties and reactions
- Isomerism
- IUPAC nomenclature
| Alkanes | Alkenes | Alkynes | Aromatic hydrocarbons |
| Conformations: Sawhorse and Newman projections (of ethane); Mechanism of halogenation of alkanes. | Geometrical isomerism; Mechanism of electrophilic addition: halogens, addition of hydrogen, water, hydrogen halides (Markownikoff’s and peroxide effect); Ozonolysis, oxidation, and polymerization. | Acidic character; halogens, Addition of hydrogen, water and hydrogen halides; Polymerization. | Nomenclature, benzene - structure and aromaticity; Mechanism of electrophilic substitution: halogenation, nitration, Friedel - Craft’s alkylation and acylation, directive influence of the functional group in mono-substituted benzene. |
UNIT 21 - Organic Compounds Containing Halogens
- Uses; Environmental effects of chloroform, iodoform, freons and DDT.
- General methods of preparation, properties and reactions; Nature of C-X bond; Mechanisms of substitution reactions.
UNIT 22 -Organic Compounds Containing Oxygen
General methods of properties, preparation, reactions and uses.
