JEE Main Syllabus 2021 with Weightage Pdf by NTA JEE Mains and Advanced Exam Syllabus 2021 Free Download JEE Main Exam Pattern 2021. The official NTA JEE Main Syllabus 2021 will be released by the National Testing Agency. Through the candidates JEE Main 2021 Exam Syllabus, you will be able to get information about important topics appearing in the combined entrance exam. Through this page, students can check their JEE Main Exam Pattern 2021 and JEE Mains 2021 ka Syllabus for Physics, Chemistry and Mathematics and prepare accordingly. Candidates preparing for JEE Main can check subjectwise important concepts and topics with the help of JEE Main Syllabus 2021 PDF and students can plan their study.
JEE Main Syllabus 2021 PDF Download
Contents
JEE Mains 2021 Syllabus PDF NTA: Along with IIT JEE Main Syllabus 2021, students can check previous year question papers to get information about the difficulty level of exam, nature of questions and questions asked. Accordingly, students can achieve every milestone by planning their preparation. Often, those candidates are successful who try their best to achieve their status with utmost dedication and hard work. For the entrance exam syllabus, candidates can dwnload with the help of JEE Main 2021 Syllabus Official Website nta.ac.in and we are providing you the complete syllabus on this page which can be checked. You can read this article in full to know more about JEE Main and Advanced Syllabus 2021 PDF.
JEE Main 2021 Exam Syllabus
Students appearing for JEE Main can focus on their topics which require more time and concepts through JEE Mains Syllabus 2021 by NTA PDF. NTA will announce the Detailed Syllabus of JEE Mains 2021 for Paper 1 and Paper 2. Jee Main 2020 is an Engineering Combined Entrance Examination for the top IIT and NIT students in India. In which every year many students appear in this exam to participate. This examination was conducted by CBSE, but after the year 2019, the responsibility of conducting this examination has been given to the National Testing Agency (NTA).
JEE Main Exam Pattern 2021
In this article, we will discuss about JEE Main 2021 exam in detail like exam pattern, syllabus, eligibility criteria, application form etc. The JEE Main exam will be held twice a year, firstly in January 2021 and then once in April 2021. JEE Main 2021 Application Form will be made available only in online mode and will be filled online. As soon as the notification is issued by the NTA, you will be informed about the last date of the forum. Talking about the JEE Main 2021 Eligibility Criteria, the candidates who have passed 12th / science in Physics, Chemistry and Mathematics subjects, or are appearing for the 11th / 12th examination this year, can participate in it.
JEE Main 2021 Exam Pattern – Paper 1 (For B.E/ B.Tech) 

Subject  No. of Questions  Marks  Duration 
Mathematics  30  120  3 Hours 
Physics  30  120  
Chemistry  30  120  
Total  90  360 Marks  
Note:


JEE Main Exam Pattern 2021 – Paper 2 (For B.Arch/ B. Planning) 

Subject  No. of Questions  Marks  Duration 
Mathematics  30  120  3 Hours 
General Aptitude  50  200  
Drawing Test  3  70  
Total  83  390 Marks  
Note:

NTA JEE Main Syllabus 2021 – Chemistry, Mathematics, Physics
The JEE Main Syllabus of 2021 for Paper 1 (BE / B.Tech) will be released by the National Testing Agency. Which will include three Subject Class 11 and 12 Physics, Chemistry and Mathematics. There will be a total of 90 questions in this exam and each question will be of 4 marks. The Syllabus of JEE Main 2021 Paper 2 (B.Arch) will include Mathematics whose level will be of class 12, aptitude and drawing. Paper 2 will have a total of 82 questions of different marking scheme.
JEE Mains Syllabus 2021 Chemistry
The Chemistry section of JEE Main constitutes one third of Paper 1 Both numerical as well as theoretical questions are included in the question paper. You can download chemistry syllabus from here with weightage, which is spread over three sections.
Inorganic Chemistry:
 Classificaton 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 elements atomic and ionic radii, ionization enthalpy, electron gain enthalpy, valence, oxidation states and chemical reactivity.
 General Principles And Processes 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.
 Hydrogen: 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; Hydrogen as a fuel.
 S – Block Elements (Alkali And Alkaline Earth Metals): Group – 1 and 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 and sodium hydroxide; Industrial uses of lime, limestone, Plaster of Paris and cement; Biological significance of Na, K, Mg and Ca.

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; properties of boric acid, diborane, boron trifluoride, aluminium chloride and alums.
 Group – 14: Allotropes of carbon, tendency for catenation; Structure & properties of silicates, and zeolites.
 Group – 15: Properties and uses of nitrogen and phosphorus; Allotrophic forms of phosphorus; Preparation, properties, structure and uses of ammonia, nitric acid, phosphine and phosphorus halides, (PCl3, PCl5); Structures of oxides and oxoacids of phosphorus.
 Group – 16: Preparation, properties, structures and uses of ozone; Allotropic forms of sulphur; Preparation, properties, structures and uses of sulphuric acid (including its industrial preparation); Structures of oxoacids of sulphur.
 Group – 17: Preparation, properties and uses of 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.

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 K2 Cr2 O7 and KMnO4 .
 Inner Transition Elements: Lanthanoids – Electronic configuration, oxidation states and lanthanoid contraction.
 Actinoids – Electronic configuration and oxidation states.
 CoOrdination Compounds: Introduction to coordination compounds, Werner’s theory; ligands, coordination number, denticity, chelation; IUPAC nomenclature of mononuclear coordination compounds, isomerism; BondingValence 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).
 Environmental Chemistry: Environmental pollution – Atmospheric, water and soil.
 Atmospheric pollution, Tropospheric and Stratospheric
 Tropospheric pollutants, Gaseous pollutants: Oxides of carbon, nitrogen and sulphur, 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.
Organic Chemistry:
 Purification And Characterisation Of Organic Compounds: Purification – Crystallization, sublimation, distillation, differential extraction and chromatography – principles and their applications
 Qualitative analysis – Detection of nitrogen, sulphur, phosphorus and halogens.
 Quantitative analysis (basic principles only) – Estimation of carbon, hydrogen, nitrogen, halogens, sulphur, phosphorus.
 Calculations of empirical formulae and molecular formulae; Numerical problems in organic quantitative analysis.
 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 – , – C h C – and those containing halogens, oxygen, 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 free radicals, electrophiles and nucleophiles.
Electronic displacement in a covalent bond – Inductive effect, electromeric effect, resonance and hyperconjugation. 
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 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 – Craft’s alkylation and acylation, directive influence of functional group in monosubstituted benzene.
 Organic Compounds Containing Halogens: General methods of preparation, properties and reactions; Nature of CX bond; Mechanisms of substitution reactions.
 Uses; Environmental effects of chloroform & iodoform.

Organic Compounds Containing Oxygen:
 General methods of preparation, properties, reactions and uses.
 Alcohols, Phenols And Ethers
 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 r – hydrogen, aldol condensation, Cannizzaro reaction, Haloform reaction; Chemical tests to distinguish between aldehydes and Ketones.
 Carboxylic Acids
 Acidic strength and factors affecting it.

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.
 POLYMERS: General introduction and classification of polymers, general methods of polymerizationaddition and condensation, copolymerization; Natural and synthetic rubber and vulcanization; some important polymers with emphasis on their monomers and uses – polythene, nylon, polyester and bakelite.
 BIOMOLECULES: General introduction and importance of biomolecules. CARBOHYDRATES – Classification: aldoses and ketoses; monosaccharides (glucose and fructose) and constituent monosaccharides of oligosacchorides (sucrose, lactose and maltose).
 PROTEINS – Elementary Idea of r – amino acids, peptide bond, polypeptides; Proteins: primary, secondary, tertiary and quaternary structure (qualitative idea only), denaturation of proteins, enzymes.
 VITAMINS – Classification and functions.
 NUCLEIC ACIDS – Chemical constitution of DNA and RNA. Biological functions of nucleic acids.
 CHEMISTRY IN EVERYDAY LIFE: Chemicals in medicines – Analgesics, tranquilizers, antiseptics, disinfectants, antimicrobials, antifertility drugs, antibiotics, antacids, antihistamins – their meaning and common examples.
 Chemicals in food – Preservatives, artificial sweetening agents – common examples. Cleansing agents – Soaps and detergents, cleansing action.

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.
 Chemistry involved in the preparation of the following: Inorganic compounds: Mohr’s salt, potash alum. Organic compounds: Acetanilide, pnitroacetanilide, aniline yellow, iodoform.
 Chemistry involved in the titrimetric excercises – Acids bases and the use of indicators, oxalicacid 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+. Anions CO3 2, S2, SO4 2, 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.
 Kinetic study of reaction of iodide ion with hydrogen peroxide at room temperature.
Physical Chemistry:
 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.
 States Of Matter: Classification of matter into solid, liquid and gaseous states.
 Gaseous State: Measurable properties of gases; Gas laws – Boyle’s law, Charle’s law, Graham’s law of diffusion, Avogadro’s law, Dalton’s law of partial pressure; Concept of Absolute scale of temperature; Ideal gas equation; Kinetic theory of gases (only postulates); Concept of average, root mean square and most probable velocities; Real gases, deviation from Ideal behaviour, compressibility factor and van der Waals equation.
 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.

Atomic Structure:
 Thomson and Rutherford atomic models and their limitations; Nature of electromagnetic radiation, photoelectric effect; 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, deBroglie’s relationship, Heisenberg uncertainty principle.
 Elementary ideas of quantum mechanics, quantum mechanical model of atom, its important features, concept of atomic orbitals as one electron wave functions; 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’s exclusion principle and Hund’s rule, electronic configuration of elements, extra stability of halffilled and completely filled orbitals.
 Chemical Bonding And Molecular Strucure: Kossel – Lewis approach to chemical bond formation, 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, 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 pibonds, molecular orbital electronic configurations of homonuclear diatomic molecules, concept of bond order, bond length and bond energy. 
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. Second law of thermodynamics; Spontaneity of processes; DS of the universe and DG of the system as criteria for spontaneity, Dgo (Standard Gibbs energy change) and equilibrium constant.
 Solutions: Different methods for expressing concentration of solution – molality, molarity, mole fraction, percentage (by volume and mass both), vapour pressure of solutions and Raoult’s Law – Ideal and nonideal solutions, vapour pressure – composition, plots for ideal and nonideal 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, van’t Hoff factor and its significance.
 Equilibrium: Meaning of equilibrium, concept of dynamic equilibrium.
 Equilibria involving physical processes: Solid liquid, liquid – gas and solid – gas equilibria, Henry’s law, general characterics of equilibrium involving physical processes.
Equilibria involving chemical processes: Law of chemical equilibrium, equilibrium constants (Kp and Kc) and their significance, significance of DG and DGo in chemical equilibria, factors affecting equilibrium concentration, pressure, temperature, effect of 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.

Redox Reactions And Electrochemistry:
 Electronic concepts of oxidation and reduction, redox reactions, oxidation number, rules for assigning oxidation number, balancing of redox reactions.
 Eectrolytic 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.
 Chemical Kinetics: 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, effect of temperature on rate of reactions – Arrhenius theory, activation energy and its calculation, collision theory of bimolecular gaseous reactions (no derivation).

Surface Chemistry:
 Adsorption Physisorption and chemisorption and their characteristics, factors affecting adsorption of gases on solids – Freundlich and Langmuir adsorption isotherms, adsorption from solutions.
 Colloidal state distinction among true solutions, colloids and suspensions, classification of colloids – lyophilic, lyophobic; multi molecular, macromolecular and associated colloids (micelles), preparation and properties of colloids – Tyndall effect, Brownian movement, electrophoresis, dialysis, coagulation and flocculation; Emulsions and their characteristics.
Topic  Questions  Weightage 
Periodic table and Representative Elements  3  12 
Transition Elements and Coordination Chemistry  3  12 
Atomic Structure  2  8 
Chemical Bonding  2  8 
Thermodynamics And Gaseous State  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 
Here we have providing a list of such an important topics from the JEE Main 2021 Chemistry Syllabus along with their expected weightage in the exam.
Important Topics  Expected weightage 
Transition Elements & Coordination Chemistry  9% 
Carbohydrates, Amino Acids and Polymers  7% 
Periodic Table and Representative elements  6% 
General Organic Chemistry  6% 
Chemical Bonding  6% 
Atomic Structure  5% 
JEE Main 2021 Math Syllabus:
There are some subjects in the JEE Main Mathematics Syllabus that have been a regular feature of the JEE Main exam for years. For effective preparation, students should first target the most weighted chapters. Here is a list of topics which expect to have maximum weightage in JEE Main 2021 Exam Syllabus. Last year, the most weightage in mathematics was given to chapters like Algebra, Trigonometry, Calculus, Coordinate Geometry etc. You can download the detailed Syllabus of JEE Mains 2021 PDF for Mathematics from here.
 Sets, relations and functions: Sets and their representation; Union, intersection and complement of sets and their algebraic properties; Power set; Relation, Types of relations, equivalence relations, functions; Oneone, into and onto functions, composition of functions.
 Complex numbers and quadratic equations: Complex numbers as ordered pairs of reals, Representation of complex numbers in the form a+ib and their representation in a plane, Argand diagram, algebra of complex numbers, modulus and argument (or amplitude) of a complex number, square root of a complex number, triangle inequality, Quadratic equations in real and complex number system and their solutions. Relation between roots and coefficients, nature of roots, formation of quadratic equations with given roots.

Matrices and determinants:
 Matrices, algebra of matrices, types of matrices, determinants and matrices of order two and three. Properties of determinants, evaluation of determinants, area of triangles using determinants. Adjoint and evaluation of inverse of a square matrix using determinants and elementary transformations, Test of consistency and solution of simultaneous linear equations in two or three variables using determinants and matrices.
 Permutations and combinations: Fundamental principle of counting, permutation as an arrangement and combination as selection, Meaning of P (n,r) and C (n,r), simple applications.
 Mathematical induction: Principle of Mathematical Induction and its simple applications
 Binomial theorem and its simple applications: Binomial theorem for a positive integral index, general term and middle term, properties of Binomial coefficients and simple applications.
 Sequences and series: Arithmetic and Geometric progressions, insertion of arithmetic, geometric means between two given numbers. Relation between A.M. and G.M. Sum upto n terms of
special series: S n, S n2, Sn3. Arithmetico – Geometric progression. 
Limit, continuity and differentiability:
 Real – valued functions, algebra of functions, polynomials, rational, trigonometric, logarithmic and exponential functions, inverse functions. Graphs of simple functions. Limits, continuity and differentiability. Differentiation of the sum, difference, product and quotient of two functions. Differentiation of trigonometric, inverse trigonometric, logarithmic, exponential, composite and implicit functions; derivatives of order upto two. Rolle’s and Lagrange’s Mean Value Theorems. Applications of derivatives: Rate of change of quantities, monotonic – increasing and decreasing functions, Maxima and minima of functions of one variable, tangents and normals
 Integral calculus: Integral as an anti – derivative. Fundamental integrals involving algebraic, trigonometric, exponential and logarithmic functions. Integration by substitution, by parts and by partial fractions. Integration using trigonometric identities.
 Evaluation of simple integrals of the type Integral as limit of a sum. Fundamental Theorem of Calculus. Properties of definite integrals. Evaluation of definite integrals, determining areas of the regions bounded by simple curves in standard form.
 Differential equations: Ordinary differential equations, their order and degree. Formation of differential equations. Solution of differential equations by the method of separation of variables, solution of homogeneous and linear differential equations of the type: dy/dx+p(x)y=q(x)

Coordinate geometry:
 Cartesian system of rectangular coordinates 10 in a plane, distance formula, section formula, locus and its equation, translation of axes, slope of a line, parallel and perpendicular lines, intercepts of a line on the coordinate axes.
 Straight lines: Various forms of equations of a line, intersection of lines, angles between two lines, conditions for concurrence of three lines, distance of a point from a line, equations of internal and external bisectors of angles between two lines, coordinates of centroid, orthocentre and circumcentre of a triangle, equation of family of lines passing through the point of intersection of two lines.
 Circles, conic sections: Standard form of equation of a circle, general form of the equation of a circle, its radius and centre, equation of a circle when the end points of a diameter are given, points of intersection of a line and a circle with the centre at the origin and condition for a line to be tangent to a circle, equation of the tangent. Sections of cones, equations of conic sections (parabola, ellipse and hyperbola) in standard forms, condition for y = mx + c to be a tangent and point (s) of tangency.
 Three dimensional geometry: Coordinates of a point in space, distance between two points, section formula, direction ratios and direction cosines, angle between two intersecting lines. Skew lines, the shortest distance between them and its equation. Equations of a line and a plane in different forms, intersection of a line and a plane, coplanar lines.
 Vector algebra: Vectors and scalars, addition of vectors, components of a vector in two dimensions and three dimensional space, scalar and vector products, scalar and vector triple product.

Statistics and probability:
 Measures of Dispersion: Calculation of mean, median, mode of grouped and ungrouped data calculation of standard deviation, variance and mean deviation for grouped and ungrouped data.
 Probability: Probability of an event, addition and multiplication theorems of probability, Baye’s theorem, probability distribution of a random variate, Bernoulli trials and Binomial distribution.
 Trigonometry: Trigonometrical identities and equations. Trigonometrical functions. Inverse trigonometrical functions and their properties. Heights and Distances.
 Mathematical reasoning: Statements, logical operations and, or, implies, implied by, if and only if. Understanding of tautology, contradiction, converse and contrapositive.
Topic  Questions  Weightage 
Coordinate Geometry  5  20 
Limits, Continuity and Differentiability  3  12 
Integral Calculus  3  12 
Complex Numbers and Quadratic Equation  2  8 
Statistics and Probability  2  8 
Matrices and Determinants  2  8 
Three Dimensional Geometry  2  8 
Vector Algebra  2  8 
Permutations and Combinations  1  4 
Sets, Relation and Function  1  4 
Binomial Theorem and Its Application  1  4 
Sequences and Series  1  4 
Mathematical Reasoning  1  4 
Trigonometry  1  4 
Differential Equation  1  4 
Differential Calculus  1  4 
Statics and Dynamics  1  4 
Here we have providing a list of such an important topics from the Maths syllabus along with their expected weightage in JEE Main Maths Syllabus 2021.
Important Topics  Expected weightage 
Coordinate Geometry  12% 
Integral Calculus  12% 
Trigonometry  7% 
Sequence and Series  7% 
Matrices and Determinants  7% 
Differential Equations  7% 
Syllabus of JEE Mains 2021 Physics:
Physics is the most important subject of JEE Main syllabus 2021. In this exam Physics contributes 30 questions in total. Last year, the maximum weightage was given to these topics like – Mechanics, Heat and Thermodynamics, Electrostatics and Magnetism, Current Electricity and Electromagnetism, Optics and Modern Physics.
 Physics And Measurement: Physics, technology and society, S I units, Fundamental and derived units. Least count, accuracy and precision of measuring instruments, Errors in measurement, Dimensions of Physical quantities, dimensional analysis and its applications
 Kinematics: Frame of reference. Motion in a straight line: Positiontime graph, speed and velocity. Uniform and nonuniform motion, average speed and instantaneous velocity Uniformly accelerated motion, velocitytime, positiontime graphs, relations for uniformly accelerated motion. Scalars and Vectors, Vector addition and Subtraction, Zero Vector, Scalar and Vector products, Unit Vector, Resolution of a Vector. Relative Velocity, Motion in a plane, Projectile Motion, Uniform Circular Motion

Laws Of Motion:
 Force and Inertia, Newton’s First Law of motion; Momentum, Newton’s Second Law of motion; Impulse; Newton’s Third Law of motion. Law of conservation of linear momentum and its applications, Equilibrium of concurrent forces.
 Static and Kinetic friction, laws of friction, rolling friction
 Dynamics of uniform circular motion: Centripetal force and its applications.
 Work,Energy And Power: Work done by a constant force and a variable force; kinetic and potential energies, work energy theorem, power.
 Potential energy of a spring, conservation of mechanical energy, conservative and nonconservative forces; Elastic and inelastic collisions in one and two dimensions.
 Rotational Motion: Centre of mass of a twoparticle system, Centre of mass of a rigid body; Basic concepts of rotational motion; moment of a force, torque, angular momentum, conservation of angular momentum and its applications; moment of inertia, radius of gyration. Values of moments of inertia for simple geometrical objects, parallel and perpendicular axes theorems and their applications. Rigid body rotation, equations of rotational motion.
 Gravitation: The universal law of gravitation. Acceleration due to gravity and its variation with altitude and depth. Kepler’s laws of planetary motion. Gravitational potential energy; gravitational potential. Escape velocity. Orbital velocity of a satellite. Geostationary satellites.

Properties Of Solids And Liquids:
 Elastic behaviour, Stressstrain relationship, Hooke’s Law, Young’s modulus, bulk modulus, modulus of rigidity. Pressure due to a fluid column; Pascal’s law and its applications. Viscosity, Stokes’ law, terminal velocity, streamline and turbulent flow, Reynolds number. Bernoulli’s principle and its applications. Surface energy and surface tension, angle of contact, application of surface tension – drops, bubbles and capillary rise. Heat, temperature, thermal expansion; specific heat capacity, calorimetry; change of state, latent heat. Heat transferconduction, convection and radiation, Newton’s law of cooling.
 Thermodynamics: Thermal equilibrium, zeroth law of thermodynamics, concept of temperature. Heat, work and internal energy. First law of thermodynamics. Second law of thermodynamics: reversible and irreversible processes. Carnot engine and its efficiency.
 Kinetic Theory Of Gases: Equation of state of a perfect gas, work done on compressing a gas. Kinetic theory of gases – assumptions, concept of pressure. Kinetic energy and temperature: rms speed of gas molecules; Degrees of freedom, Law of equipartition of energy, applications to specific heat capacities of gases; Mean free path, Avogadro’s number.

Oscillations And Waves:
 Periodic motion – period, frequency, displacement as a function of time. Periodic functions. Simple harmonic motion (S.H.M.) and its equation; phase; oscillations of a spring restoring force and force constant; energy in S.H.M. – kinetic and potential energies; Simple pendulum – derivation of expression for its time period; Free, forced and damped oscillations, resonance
 Wave motion. Longitudinal and transverse waves, speed of a wave. Displacement relation for a progressive wave. Principle of superposition of waves, reflection of waves, Standing waves in strings and organ pipes, fundamental mode and harmonics, Beats, Doppler effect in sound
 Electrostatics: Electric charges: Conservation of charge, Coulomb’s lawforces between two point charges, forces between multiple charges; superposition principle and continuous charge distribution.
 Electric field: Electric field due to a point charge, Electric field lines, Electric dipole, Electric field due to a dipole, Torque on a dipole in a uniform electric field.
 Electric flux, Gauss’s law and its applications to find field due to infinitely long uniformly charged straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell. Electric potential and its calculation for a point charge, electric dipole and system of charges; Equipotential surfaces, Electrical potential energy of a system of two point charges in an electrostatic field.
 Conductors and insulators, Dielectrics and electric polarization, capacitor, combination of capacitors in series and in parallel, capacitance of a parallel plate capacitor with and without dielectric medium between the plates, Energy stored in a capacitor.

Currrent Electricity:
 Electric current, Drift velocity, Ohm’s law, Electrical resistance, Resistances of different materials, VI characteristics of Ohmic and nonohmic conductors, Electrical energy and power, Electrical resistivity, Colour code for resistors; Series and parallel combinations of resistors; Temperature dependence of resistance. Electric Cell and its Internal resistance, potential difference and emf of a cell, combination of cells in series and in parallel. Kirchhoff’s laws and their applications. Wheatstone bridge, Metre bridge. Potentiometer – principle and its applications.
 Magnetic Effects Of Current And Magnetism: Biot – Savart law and its application to current carrying circular loop. Ampere’s law and its applications to infinitely long current carrying straight wire and solenoid. Force on a moving charge in uniform magnetic and electric fields. Cyclotron.
 Force on a currentcarrying conductor in a uniform magnetic field. Force between two parallel currentcarrying conductorsdefinition of ampere. Torque experienced by a current loop in uniform magnetic field; Moving coil galvanometer, its current sensitivity and conversion to ammeter and voltmeter.
 Current loop as a magnetic dipole and its magnetic dipole moment. Bar magnet as an equivalent solenoid, magnetic field lines; Earth’s magnetic field and magnetic elements. Para, dia and ferro magnetic substances.
 Magnetic susceptibility and permeability, Hysteresis, Electromagnets and permanent magnets.
 Electromagnetic Induction And Alternating Currents: Electromagnetic induction; Faraday’s law, induced emf and current; Lenz’s Law, Eddy currents. Self and mutual inductance. Alternating currents, peak and rms value of alternating current/ voltage; reactance and impedance; LCR series circuit, resonance; Quality factor, power in AC circuits, wattless current. AC generator and transformer.

Electromagnetic Waves:
 Electromagnetic waves and their characteristics. Transverse nature of electromagnetic waves.
 Electromagnetic spectrum (radio waves, microwaves, infrared, visible, ultraviolet, Xrays, gamma rays). Applications of e.m. waves.
 Optics: Reflection and refraction of light at plane and spherical surfaces, mirror formula, Total internal reflection and its applications, Deviation and Dispersion of light by a prism, Lens Formula, Magnification, Power of a Lens, Combination of thin lenses in contact, Microscope and Astronomical Telescope (reflecting and refracting) and their magnifying powers.
 Wave optics: wavefront and Huygens’ principle, Laws of reflection and refraction using Huygen’s principle. Interference, Young’s double slit experiment and expression for fringe width. Diffraction due to a single slit, width of central maximum. Resolving power of microscopes and astronomical telescopes, Polarisation, plane polarized light; Brewster’s law, uses of plane polarized light and Polaroids.

Dual Nature Of Matter Andradiation:
 Dual nature of radiation. Photoelectric effect, Hertz and Lenard’s observations; Einstein’s photoelectric equation; particle nature of light. Matter waveswave nature of particle, de Broglie relation. DavissonGermer experiment.
 Atoms And Nuclei: Alphaparticle scattering experiment; Rutherford’s model of atom; Bohr model, energy levels, hydrogen spectrum. Composition and size of nucleus, atomic masses, isotopes, isobars; isotones. Radioactivityalpha, beta and gamma particles/rays and their properties; radioactive decay law. Massenergy relation, mass defect; binding energy per nucleon and its variation with mass number, nuclear fission and fusion.
 Electronic Devices: Semiconductors; semiconductor diode: IV characteristics in forward and reverse bias; diode as a rectifier; IV characteristics of LED, photodiode, solar cell and Zener diode; Zener diode as a voltage regulator. Junction transistor, transistor action, characteristics of a transistor; transistor as an amplifier (common emitter configuration) and oscillator. Logic gates (OR, AND, NOT, NAND and NOR). Transistor as a switch.

Communication Systems:
 Propagation of electromagnetic waves in the atmosphere; Sky and space wave propagation, Need for modulation, Amplitude and Frequency Modulation, Bandwidth of signals, Bandwidth of Transmission medium, Basic Elements of a Communication System (Block Diagram only).
Topic  Questions  Weightage 
Modern Physics  5  20 
Optics  3  12 
Heat and Thermodynamics  3  12 
Current Electricity  3  12 
Electrostatics  3  12 
Magnetics  2  8 
Unit, Dimension and Vector  1  4 
Laws of Motion  1  4 
Kinematics  1  4 
Work, Power and Energy  1  4 
Centre of Mass, Impulse and Momentum  1  4 
Rotation  1  4 
Gravitation  1  4 
Simple Harmonic Motion  1  4 
Solid and Fluids  1  4 
Waves  1  4 
Electromagnetics Induction; AC  1  4 
Here we have providing a list of such an important topics from the JEE Main 2021 Physics syllabus which have been a regular feature of JEE Main Examination for years along with their expected weightage.
Important Topics  Expected weightage 
Heat and Thermodynamics  11% 
Optics  11% 
Modern Physics  10% 
Electrostatics  8% 
Current and Electricity  7% 
Waves  5% 
Hope this info is useful for you!
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