Candidates preparing for JEE Main chemistry 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 September 2019. JEE Main Chemistry 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 2019. Since the JEE Main syllabus 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 January 6 to 11 whereas, and the second session will be held from April 3 to 9, 2020. 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 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.

JEE Main Chemistry Syllabus

A study of previous years papers, expert tips, topper experiences- these are invaluable to know how to study and get good marks in Chemistry. The preparation can be made goal-oriented if you know what chapters are more important, which ones have usually been covered more in the past examinations, how to remember the formulas and such. The JEE Main Chemistry notes for spells the preparation strategy with specific emphasis on the chapters, weightage and books. Let us tell you that the basic concepts and chapters must be completely covered. There is no reason to leave out any chapters for the exam. The JEE Main Chemistry and Class 12 exam preparation can be clubbed for this goal. Best book solutions to do this are the ones from NCERT. Read them to strengthen your grip on the subject and move on to the additional books delving deeper into the chapters.

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 2019	Questions Asked in Jan 2019
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 homonuclear 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, Homogeneous 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 - P Block 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 - D and F Block 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.

Lanthanoids - Electronic configuration, oxidation states, chemical reactivity and lanthanoid contraction.

Actinoids - Electronic configuration and oxidation states.

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; 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 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.

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); Acidity of? - hydrogen, Cannizzaro reaction, aldol condensation, Haloform reaction; Chemical tests to distinguish between aldehydes and Ketones.
Carboxylic Acids	Acidic strength and factors affecting it.

UNIT 23 - Organic Compounds Containing Nitrogen

General methods of properties, preparation, reactions and uses.

Diazonium Salts: Importance in synthetic organic chemistry.
Amines: Nomenclature, structure, classification, basic character and identification of primary, secondary and tertiary amines and their basic character.

UNIT 24 - Polymers

General introduction and classification of polymers, copolymerization, general methods of polymerization - addition and condensation;

Natural and synthetic rubber and vulcanization; some important polymers with emphasis on their monomers and uses - polyethene, polyester, nylon, and bakelite.

UNIT 25 - Biomolecules

Importance of biomolecules and General introduction.

Carbohydrates	Classification: aldoses and ketoses; monosaccharides (glucose and fructose), polysaccharides (starch, cellulose, glycogen) and constituent monosaccharides of oligosaccharides (sucrose, lactose, maltose).
Proteins	Elementary Idea of amino acids, peptide bond, polypeptides; Proteins: tertiary and quaternary structure (qualitative idea only), primary, secondary, denaturation of proteins, enzymes.
Vitamins	Classification and functions.
Nucleic Acids	The chemical constitution of DNA and RNA. Biological functions of nucleic acids.

UNIT 26 - Environmental Chemistry

Atmospheric pollution - Tropospheric and stratospheric
Environmental pollution - Atmospheric, water and soil.
Tropospheric pollutants - Gaseous pollutants: Oxides of carbon, hydrocarbons; their sources, nitrogen and sulphur, harmful effects and prevention; Greenhouse effect and Global warming; Acid rain; Particulate pollutants: smog, fumes, smoke, dust, mist; their sources, harmful effects and prevention.
Stratospheric pollution - Formation and breakdown of ozone, depletion of the ozone layer - its mechanism and effects.
Soil pollution - Major pollutants such as Pesticides (herbicides, insecticides and fungicides), their harmful effects and prevention.
Water Pollution - Major pollutants such as pathogens, organic wastes and chemical pollutants; their harmful effects and prevention.

Strategies to control environmental pollution.

UNIT 27 - Chemistry in Everyday Life

Chemicals in Medicines	Chemicals in food	Cleansing agents
Analgesics, tranquillizers, antimicrobials, antifertility drugs, antiseptics, disinfectants, antacids, antibiotics, antihistamines - their meaning and common examples.	Preservatives, artificial sweetening agents - common examples.	Soaps and detergents, cleansing action.

Detection of other elements (N, S, halogens) inorganic compounds. Detection of the following functional groups: carbonyl (aldehyde and ketone), hydroxyl (alcoholic & phenolic), carboxyl and amino groups in organic compounds. The Chemistry experiments of the following:

1) Inorganic compounds: Potash Alum and Mohr’s salt.

2) Organic compounds: Acetanilide, p-nitro acetanilide, aniline yellow, iodoform.

3) Titrimetric exercises involve - Acids bases and the use of indicators, oxalic-acid vs KMnO4, Mohr’s salt vs KMnO4.

4) Qualitative salt analysis:

Cations - Pb²⁺ , Cu²⁺, Al³⁺, Fe³⁺, Zn²⁺, Ni²⁺, Ca²⁺, Ba²⁺, Mg²⁺, NH⁴⁺.
60 Anions - CO₃^2-, S^2-, SO₄^2-, NO₂^-, NO₃^-, Cl^-, Br^-, I^-. (Insoluble salts excluded).

Chemical principles included in the following experiments:

Enthalpy of solution of CuSO₄
Preparation of lyophilic and lyophobic sols.
Enthalpy of neutralization of strong acid and strong base.
Kinetic study of the reaction of iodide ion with hydrogen peroxide at room temperature.

Chemistry Chapter and Number of Questions (Expected) Asked in JEE Main Chemistry

Topics	No 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
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