{"id":9118,"date":"2025-12-12T14:01:25","date_gmt":"2025-12-12T08:31:25","guid":{"rendered":"https:\/\/www.mycareer.matrixedu.in\/\/?p=9118"},"modified":"2026-03-21T14:06:55","modified_gmt":"2026-03-21T08:36:55","slug":"most-important-chemistry-formulas-for-jee-main","status":"publish","type":"post","link":"https:\/\/www.matrixedu.in\/blog\/most-important-chemistry-formulas-for-jee-main\/","title":{"rendered":"Most Important Chemistry Formulas for JEE Main"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">Most Important Chemistry Formulas for JEE Main<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Knowing the most important chemistry formulas for JEE Main is a game-changer in chemistry preparation. It can make a difference in improving the score from 60+ to 90+ marks out of 100 in chemistry. An interesting analysis observed is that toppers who mastered the most important chemistry formulas and reactions solve questions twice as fast as others. These cover periodic table trends from the p-block, d-block, and f-block elements, the most important organic reactions and a strong foundation in formulas from physical chemistry, organic chemistry and inorganic chemistry.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This blog provides a complete list of JEE Main chemistry chapter-wise high-scoring formulas and organic reactions. The formula list is ideal for beginners and repeaters. Aspirants can also use the list to revise regularly, just like Matrix JEE Academy toppers. By being thorough with these formulas, one can maximise their speed and accuracy while solving chemistry questions. Hence, turn chemistry into a high-scoring section by using this list and applying Matrix topper strategies shared in this blog.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Complete Overview of the JEE Main Chemistry Syllabus (NTA Updated)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The JEE Main chemistry syllabus is divided into three sections &#8211; physical chemistry, organic chemistry and inorganic chemistry. Matrix chemistry faculty analysed the chemistry paper and syllabus. They identified that physical chemistry has more emphasis on numerical questions, whereas organic chemistry focuses on reaction mechanisms and reagents. Inorganic chemistry includes memorizing periodic trends and coordination chemistry. Hence, matrix chemistry teachers recommend understanding the syllabus thoroughly before moving to smart study strategies and an important formulas list.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><a href=\"https:\/\/www.matrixedu.in\/blog\/wp-content\/uploads\/2025\/12\/Most-Important-Chemistry-Formulas-for-JEE-Main.pdf\">Download Most Important Chemistry Formulas for JEE Main PDF<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Physical Chemistry Syllabus for JEE Main<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">As per Matrix JEE Academy mentors and toppers, the most important chapters of physical chemistry include stoichiometry, atomic structure, chemical thermodynamics, equilibrium, chemical kinetics and electrochemistry. Here is the complete physical chemistry syllabus updated by NTA with topic weightage in the JEE Main paper.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>UNIT<\/td><td>CHAPTER NAME<\/td><td>SUB-TOPIC<\/td><td>JEE Main Weightage<\/td><td>Formula Density<\/td><\/tr><tr><td>1<\/td><td>Some basic concepts in chemistry&nbsp;<\/td><td>Matter types, atomic &amp; molecular mass calculations, Laws of chemical combination, mole concept, molar mass, percentage composition, empirical &amp; molecular formula, stoichiometry, limiting reagent.<\/td><td>High (2-3 questions)<\/td><td>High<\/td><\/tr><tr><td>2<\/td><td>Atomic structure&nbsp;<\/td><td>Photoelectric effect, Bohr model, quantum numbers, de Broglie wavelength, Heisenberg uncertainty principle, orbitals, electronic configuration<\/td><td>Medium (1-2 questions)<\/td><td>Medium<\/td><\/tr><tr><td>3<\/td><td>Chemical bonding and molecular structure&nbsp;<\/td><td>Ionic &amp; covalent bonding, lattice enthalpy, electronegativity, VSEPR, hybridisation, resonance, MO theory, bond order, hydrogen bonding<\/td><td>High (2-3 questions)<\/td><td>Medium<\/td><\/tr><tr><td>4<\/td><td>Chemical thermodynamics<\/td><td>First &amp; second laws, enthalpy changes, Hess\u2019s law, entropy, Gibbs free energy, spontaneity, equilibrium constant relation<\/td><td>High (2-3 questions)<\/td><td>High<\/td><\/tr><tr><td>5<\/td><td>Solutions<\/td><td>Molarity, molality, mole fraction, Raoult\u2019s law, colligative properties, osmotic pressure, van\u2019t Hoff factor, abnormal molar mass<\/td><td>Medium (1-2 questions)<\/td><td>High<\/td><\/tr><tr><td>6<\/td><td>Equilibrium&nbsp;<\/td><td>Chemical equilibrium, Kp &amp; Kc, Le Chatelier\u2019s principle, acids\u2013bases, pH, buffer solutions, solubility product, common ion effect<\/td><td>High (2-3 questions)<\/td><td>High<\/td><\/tr><tr><td>7<\/td><td>Redox reactions and electrochemistry&nbsp;<\/td><td>Oxidation number, redox balancing, conductance, Kohlrausch\u2019s law, electrochemical cells, Nernst equation, Gibbs\u2013EMF relation, fuel cells<\/td><td>High (2-3 questions)<\/td><td>High<\/td><\/tr><tr><td>8<\/td><td>Chemical kinetics<\/td><td>Rate law, order &amp; molecularity, integrated rate equations, half-life, Arrhenius equation, activation energy, collision theory<\/td><td>Medium (1-2 questions)<\/td><td>High<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Organic Chemistry Syllabus for JEE Main<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Organic chemistry is all about reaction mechanisms, reagents and functional groups. As analysed by the Matrix JEE faculty, the key topics based on past year JEE Main papers are: Hydrocarbons, Haloalkanes &amp; Haloarenes, Alcohols, Phenols, Ethers, Aldehydes, Ketones, Carboxylic Acids, Amines, and Biomolecules. Below is the complete syllabus of organic chemistry updated by NTA with topic weightage in the JEE Main paper:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>UNIT<\/td><td>CHAPTER NAME<\/td><td>SUB-TOPIC<\/td><td>JEE Main Weightage<\/td><td>Formula\/Reaction Density<\/td><\/tr><tr><td>1<\/td><td>Purification and characterisation of organic compounds<\/td><td>Crystallisation, sublimation, distillation, chromatography, qualitative tests (N, S, Halogens), quantitative analysis, empirical &amp; molecular formula calculations.<\/td><td>Low (1-2 questions)<\/td><td>Low<\/td><\/tr><tr><td>2<\/td><td>Some basic principles of organic chemistry (GOC)<\/td><td>Hybridisation, isomerism, IUPAC nomenclature, carbocations\/free radicals, inductive, resonance &amp; hyperconjugation effects, electrophiles &amp; nucleophiles, reaction types.<\/td><td>High (2-3 questions)<\/td><td>High<\/td><\/tr><tr><td>3<\/td><td>Hydrocarbons<\/td><td>Alkanes (conformations, halogenation), alkenes (addition reactions, ozonolysis), alkynes (acidic nature), aromatic hydrocarbons, electrophilic substitution, Friedel\u2013Crafts reactions.&nbsp;<\/td><td>High (2-3 questions)<\/td><td>High<\/td><\/tr><tr><td>4<\/td><td>Organic compounds containing halogens<\/td><td>C\u2013X bond nature, SN1 &amp; SN2 mechanisms, nucleophilic substitution reactions, preparation &amp; properties, environmental effects (DDT, freons).&nbsp;<\/td><td>Medium (1-2 questions)<\/td><td>Medium<\/td><\/tr><tr><td>5<\/td><td>Organic compounds containing oxygen<\/td><td>Alcohols, phenols, ethers, aldehydes, ketones &amp; carboxylic acids \u2013 preparation, properties, acidity, oxidation\u2013reduction, aldol, Cannizzaro, haloform, Grignard reactions, tests.<\/td><td>High (2-3 questions)<\/td><td>High<\/td><\/tr><tr><td>6<\/td><td>Organic compounds containing nitrogen<\/td><td>Amines \u2013 basicity, preparation, reactions, diazonium salts &amp; their synthetic importance.<\/td><td>Medium (1-2 questions)<\/td><td>High<\/td><\/tr><tr><td>7<\/td><td>Biomolecules<\/td><td>Carbohydrates (glucose, fructose), proteins (amino acids, structure), vitamins, nucleic acids (DNA, RNA), and hormones.<\/td><td>Medium (1-2 questions)<\/td><td>Medium<\/td><\/tr><tr><td>8<\/td><td>Principles related to practical chemistry<\/td><td>Detection of functional groups &amp; extra elements, salt analysis principles, preparation of key compounds, titration chemistry, thermochemistry &amp; kinetics experiments&nbsp;<\/td><td>Low (0-1 questions)<\/td><td>Low<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Inorganic Chemistry Syllabus for JEE Main<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Inorganic is known for the periodic table and trends, properties of elements and reactions. The important chapters from this sub-section of chemistry include: P-block, D-block, F-block elements, Coordination Compounds, and periodic table trends. Below is the complete inorganic chemistry syllabus updated by NTA with topic weightage in the JEE Main paper:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>UNIT<\/td><td>CHAPTER NAME<\/td><td>SUB-TOPIC<\/td><td>JEE Main Weightage<\/td><td>Formula\/Reaction Density<\/td><\/tr><tr><td>1<\/td><td>Classification of elements and periodicity in properties<\/td><td>Modern periodic law, periodic table, s-, p-, d-, f-block classification, periodic trends in atomic radius, ionisation enthalpy, electron gain enthalpy, oxidation states, chemical reactivity.<\/td><td>Medium (1-2 questions)<\/td><td>Medium<\/td><\/tr><tr><td>2<\/td><td>p-block elements<\/td><td>Electronic configuration, periodic trends, anomalous behaviour of first elements, physical &amp; chemical properties of p-block elements across groups.<\/td><td>High (2-3 questions)<\/td><td>High<\/td><\/tr><tr><td>3<\/td><td>d- and f- block elements<\/td><td>Transition elements \u2013 general properties, oxidation states, magnetic &amp; catalytic behaviour, K\u2082Cr\u2082O\u2087 &amp; KMnO\u2084 preparation and reactions; lanthanoids &amp; actinoids \u2013 configuration &amp; oxidation states.<\/td><td>Medium (1-2 questions)<\/td><td>High<\/td><\/tr><tr><td>4<\/td><td>Coordination compounds<\/td><td>Werner\u2019s theory, ligands, coordination number, nomenclature, isomerism, VBT &amp; CFT, colour &amp; magnetic properties, applications in metallurgy, biology &amp; qualitative analysis.<\/td><td>High (2-3 questions)<\/td><td>High<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-f6d872f4 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-fill\"><a class=\"wp-block-button__link has-background wp-element-button\" href=\"https:\/\/www.matrixedu.in\/blog\/jee-main-syllabus\/\" style=\"border-top-left-radius:29px;border-top-right-radius:29px;border-bottom-left-radius:29px;border-bottom-right-radius:29px;background-color:#198237f0\">JEE Main Syllabus 2026<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Chapter-Wise Most Important Chemistry Formulas For JEE Main<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">As observed at Matrix JEE Faculty, every matrix focuses on preparing a list of important chemistry formulas for JEE Main and mastering them. These formulas can help answer the majority of chemistry questions if the relevant concepts are studied thoroughly. Below is a chapter-wise list of all important formulas from physical chemistry, organic chemistry and inorganic chemistry. The list is made by the Matrix JEE chemistry faculty based on JEE Main previous year trends.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Most Important Physical Chemistry Formulas For JEE Main<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Some Basic Concepts in Chemistry<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\\[\\text{Number of Moles}: n = \\frac{w}{M}\\]<\/li>\n\n\n\n<li>\\[\\text{Molarity}: M = \\frac{\\text{moles of solute}}{\\text{volume (L)}}\\]<\/li>\n\n\n\n<li>\\[\\text{Molality}: m = \\frac{\\text{moles of solute}}{\\text{kg of solvent}}\\]<\/li>\n\n\n\n<li>\\[\\text{Mole fraction}: X_A = \\frac{n_A}{n_A + n_B}\\]<\/li>\n\n\n\n<li>\\[\\text{Density relation}: \\text{Density} = \\frac{M}{V_m}\\]<\/li>\n\n\n\n<li>\\[\\text{Gas volume at STP}: 1~\\text{mol gas} = 22.4~\\text{L}\\]<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Atomic Structure<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\\[\\text{Bohr\u2019s model of the hydrogen atom:}\\]\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Radius of nth orbit : } r_n = \\frac{n^2 h^2}{4\\pi^2 m e^2} \\cdot \\frac{1}{Z} = \\frac{n^2 a_0}{Z}, a_0 = 0.529\\,\\text{\\AA}\\]<\/li>\n\n\n\n<li>\\[\\text{Velocity of electron in nth orbit: } v_n = 2.18 \\times 10^6 \\, \\frac{Z}{n} \\ \\text{m\/s}\\]<\/li>\n\n\n\n<li>\\[\\text{Energy of nth orbit (Hydrogen-like atom): }E_n = -\\frac{13.6\\, Z^2}{n^2} \\ \\text{eV}\\]<\/li>\n\n\n\n<li>\\[\\text{Energy difference between levels (photon emitted\/observed): }\\Delta E = E_i &#8211; E_f = h\\nu\\]<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\\[\\text{Rydberg formula (spectral lines): }\\frac{1}{\\lambda} = R_H \\left( \\frac{1}{n_1^2} &#8211; \\frac{1}{n_2^2} \\right), \\quad n_2 &gt; n_1\\<br>R_H = 1.097 \\times 10^7 \\ \\text{m}^{-1}\\]<\/li>\n\n\n\n<li>\\[\\text{De broglie wavelength: }\\lambda = \\frac{h}{mv}, \\lambda = \\frac{h}{\\sqrt{2mE}}\\]<\/li>\n\n\n\n<li>\\[\\text{Heisenberg uncertainty principle: }\\Delta x \\cdot \\Delta p \\geq \\frac{h}{4\\pi}\\]<\/li>\n\n\n\n<li>\\[\\text{Energy of electron in terms of wavenumber: }E = -\\frac{R_H h c}{n^2}\\]<\/li>\n\n\n\n<li>\\[\\text{Effective nuclear charge (Slater\u2019s rule approximation): }Z_{\\text{eff}} = Z &#8211; S<br>S = \\text{shielding constant}\\]<\/li>\n\n\n\n<li>\\[\\text{Quantum numbers:}\\]\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Principal (n): energy level}\\]<\/li>\n\n\n\n<li>\\[\\text{Azimuthal (l): 0 \u2192 s, 1 \u2192 p, 2 \u2192 d, 3 \u2192 f}\\]<\/li>\n\n\n\n<li>\\[\\text{Magnetic&nbsp;}(m_l) : m_l = -l \\text{ to } +l\\]<\/li>\n\n\n\n<li>\\[\\text{Spin } (m_s) : m_s = +\\frac{1}{2}, -\\frac{1}{2}\\]<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\\[\\text{Ionisation energy (Hydrogen atom): }E_{\\text{ion}} = 13.6 \\, \\text{eV}\\]<\/li>\n\n\n\n<li>\\[\\text{Velocity of electron (Bohr\u2019s model): }v_n = \\frac{2.18 \\times 10^6 \\, Z}{n} \\; \\text{m s}^{-1}\\]<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Chemical Bonding and Molecular Structure<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\\[\\text{Bond Order (Molecular Orbital Theory)}: \\text{Bond Order} \\;=\\; \\frac{1}{2}\\big(\\text{Number of bonding electrons} &#8211; \\text{Number of antibonding electrons}\\big)\\]<\/li>\n\n\n\n<li>\\[\\text{Dipole Moment: \u03bc=d}\\]\\[\\text{where,}\\]\\[\\text{\u03bc = dipole moment}\\]\\[\\text{q = charge}\\]\\[\\text{d = distance between charges, Unit: Debye (D)}\\]<\/li>\n\n\n\n<li>\\[\\text{Percentage ionic character:} \\%\\text{ Ionic Character} \\;=\\; \\frac{\\mu_{\\text{observed}}}{\\mu_{\\text{theoretical}}}\\times 100\\]<\/li>\n\n\n\n<li>\\[\\text{Formal Charge}: \\text{Formal Charge (FC)} \\;=\\; V &#8211; N &#8211; \\frac{B}{2}\\]\\[\\text{where: V = valence electrons}\\]\\[\\text{N = non-bonded electrons}\\]\\[\\text{B = bonded electrons}\\]\\[\\text{(Used heavily in resonance &amp; structure stability questions.)}\\]<\/li>\n\n\n\n<li>\\[\\text{Lattice Enthalpy (Born\u2013Land\u00e9 Equation) }: U \\;=\\; \\frac{N_A A Z^+ Z^- e^2}{4\\pi \\varepsilon_0 r_0}\\left(1-\\frac{1}{n}\\right)\\]\\[\\text{where }N_A = \\text{Avogadro&#8217;s number }, A = \\text{Madelung constant }, Z^\\pm = \\text{ionic charges }, r_0 = \\text{nearest neighbour distance} n = \\text{Born exponent}.\\]<\/li>\n\n\n\n<li>\\[\\text{Steric Number (Hybridisation Formula): } \\text{Steric number} \\;=\\; \\sigma\\text{-bonds} + \\text{lone pairs}\\]<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Steric No.<\/td><td>Hybridisation<\/td><td>Shape<\/td><\/tr><tr><td>2<\/td><td>sp<\/td><td>Linear<\/td><\/tr><tr><td>3<\/td><td>sp\u00b2<\/td><td>Trigonal planar<\/td><\/tr><tr><td>4<\/td><td>sp\u00b3<\/td><td>Tetrahedral<\/td><\/tr><tr><td>5<\/td><td>sp\u00b3d<\/td><td>Trigonal bipyramidal<\/td><\/tr><tr><td>6<\/td><td>sp\u00b3d\u00b2<\/td><td>Octahedral<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ol start=\"7\" class=\"wp-block-list\">\n<li>\\[\\text{Relation Between Bond Length and Bond Order}: \\text{Higher Bond Order} \\;\\Longrightarrow\\; \\text{Shorter bond length and higher bond energy}\\]\\[\\text{(Higher BO \u2192 shorter and stronger bond)}\\]<\/li>\n\n\n\n<li>\\[\\text{Electronegativity Difference &amp; Type of Bond }:<br>\\begin{aligned}<br>\\Delta\\chi &lt; 0.4 &amp;\\Rightarrow \\text{Covalent} \\\\<br>0.4 &lt; \\Delta\\chi &lt; 1.7 &amp;\\Rightarrow \\text{Polar covalent} \\\\<br>\\Delta\\chi &gt; 1.7 &amp;\\Rightarrow \\text{Ionic}<br>\\end{aligned}\\]<\/li>\n\n\n\n<li>\\[\\text{Radius relation in ionic solids : } r_+ + r_- = r_0\\] \\[\\text{(where r_0 is the interionic distance used in lattice energy formulas)}\\] \\[\\text{Used with Born\u2013Land\u00e9 equation.}\\]<\/li>\n\n\n\n<li>\\[\\text{Resonance Energy Concept (Indirect Formula Use)}: \\text{Resonance Energy} \\;=\\; E_{\\text{actual}} &#8211; E_{\\text{most stable contributing structure}}\\]\\[\\text{(Used in conceptual stability comparison.)}\\]<\/li>\n\n\n\n<li>\\[\\text{VSEPR Lone Pair\u2013Bond Pair Repulsion Order: }\\text{LP&#8211;LP} &gt; \\text{LP&#8211;BP} &gt; \\text{BP&#8211;BP}\\]\\[\\text{(Used for shape prediction &amp; bond angle distortion.)}\\]<\/li>\n\n\n\n<li>\\[\\text{Relation Between Dipole Moment &amp; Geometry}: \\vec{\\mu}_{\\text{net}} \\;=\\; \\sum_i \\vec{\\mu}_i\\]<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Chemical Thermodynamics<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\\[\\text{First Law of thermodynamics}: \\Delta U = q + w\\]<\/li>\n\n\n\n<li>\\[\\text{Enthalpy Change}: \\Delta H = \\Delta U + \\Delta n_g RT\\]<\/li>\n\n\n\n<li>\\[\\text{Gibbs Free Energy}: \\Delta G = \\Delta H &#8211; T\\Delta S\\]<\/li>\n\n\n\n<li>\\[\\text{Gibbs Free Energy at equilibrium }: \\Delta G^\\circ = -RT \\ln K\\]<\/li>\n\n\n\n<li>\\[\\text{Heat at constant pressure }: q_p = nC_p \\Delta T\\]<\/li>\n\n\n\n<li>\\[\\text{Relation between } C_p \\text{ and } C_v\\textbf{:} C_p &#8211; C_v = R\\]<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Solutions<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\\[\\text{Raoult\u2019s Law}: P_A = X_A P_A^0\\]<\/li>\n\n\n\n<li>\\[\\text{Elevation in boiling point}: \\Delta T_b = K_b m\\]<\/li>\n\n\n\n<li>\\[\\text{Depression in freezing point}: \\Delta T_f = K_f m\\]<\/li>\n\n\n\n<li>\\[\\text{Van\u2019t Hoff factor}: i = \\frac{\\text{observed value}}{\\text{calculated value}}\\]<\/li>\n\n\n\n<li>\\[\\text{Osmotic Pressure}: \\pi = C R T\\]<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Chemical Equilibrium<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\\[\\text{Law of Mass Action}: K_c = \\frac{[C]^c [D]^d}{[A]^a [B]^b}\\]<\/li>\n\n\n\n<li>\\[\\text{Relation between} K_p \\text{ and } K_c: K_p = K_c (RT)^{\\Delta n}\\]<\/li>\n\n\n\n<li>\\[\\text{Degree of dissociation}: \\alpha = \\frac{\\text{moles dissociated}}{\\text{initial moles}}\\]<\/li>\n\n\n\n<li>\\[\\text{Relation with equilibrium constant (weak electrolyte)}: K = \\frac{\\alpha^2 C}{1 &#8211; \\alpha}\\]<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Ionic Equilibrium<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\\[\\text{pH definition: }pH = -\\log [H^+]\\]<\/li>\n\n\n\n<li>\\[\\text{pOH: }pOH = -\\log [OH^-]\\]<\/li>\n\n\n\n<li>\\[\\text{Relationship between pH and pOH: }pH + pOH = 14\\]<\/li>\n\n\n\n<li>\\[\\text{Ionic Product of Water: }K_w = [H^+][OH^-]\\]<\/li>\n\n\n\n<li>\\[\\text{Henderson\u2013Hasselbalch Equation: }pH = pK_a + \\log \\frac{\\text{salt}}{\\text{acid}}\\]<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Redox Reactions and Electrochemistry<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\\[\\text{Nernst equation: }E = E^\\circ &#8211; \\frac{0.0591}{n}\\log Q\\]<\/li>\n\n\n\n<li>\\[\\text{Faraday&#8217;s first law of electrolysis: }m = ZIt\\]<\/li>\n\n\n\n<li>\\[\\text{Faraday&#8217;s second of electrolysis: }\\frac{m_1}{m_2} = \\frac{E_1}{E_2}\\]<\/li>\n\n\n\n<li>\\[\\text{Gibb\u2019s free energy relation: }\\Delta G = -nFE\\]<\/li>\n\n\n\n<li>\\[\\text{Kohlrausch law of independent migration of ions: }\\Lambda_m^\\circ = \\nu_+ \\lambda_+^\\circ + \\nu_- \\lambda_-^\\circ\\]<\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Chemical Kinetics<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\\[\\text{Rate Law: }\\text{Rate} = k[A]^n\\]<\/li>\n\n\n\n<li>\\[\\text{First Order Rate Constant: }k = \\frac{2.303}{t} \\log \\frac{[A]_0}{[A]}\\]<\/li>\n\n\n\n<li>\\[\\text{Half-life for First Order Reaction: }t_{1\/2} = \\frac{0.693}{k}\\]<\/li>\n\n\n\n<li>\\[\\text{Arrhenius Equation: }k = A e^{-\\frac{E_a}{RT}}\\]<\/li>\n\n\n\n<li>\\[\\text{Log form of Arrhenius: }\\log k = \\log A &#8211; \\frac{E_a}{2.303RT}\\]<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Most Important Organic Chemistry Formulas For JEE Main<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Purification and Characterisation of Organic Compounds<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Percentage of Element: }\\%\\,\\text{Element} = \\frac{\\text{Mass of element}}{\\text{Molar mass}} \\times 100\\]<\/li>\n\n\n\n<li>\\[\\text{Empirical formula: Empirical Mass = \u2211(atomic masses)}\\]<\/li>\n\n\n\n<li>\\[\\text{Molecular mass: Molecular Mass = n \u00d7 Empirical Mass}\\]<\/li>\n\n\n\n<li>\\[\\text{Vapour density relation: M = 2 \u00d7 V.D.}\\]<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Key Reactions \/ Tests<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;Lassaigne\u2019s Test (Detection):<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Element&nbsp;<\/td><td>Reagent&nbsp;<\/td><td>Observation&nbsp;<\/td><\/tr><tr><td>N<\/td><td>FeSO\u2084 + HCl<\/td><td>Prussian Blue<\/td><\/tr><tr><td>S<\/td><td>Lead Acetate<\/td><td>Black ppt<\/td><\/tr><tr><td>Halogen<\/td><td>AgNO\u2083<\/td><td>White\/Yellow ppt<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Some Basic Principles of Organic Chemistry (GOC)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Inductive Effect: }+I,\u2212I+I , -I+I,\u2212I: Order: \u2212NO2\u200b&gt;\u2212CN&gt;\u2212COOH&gt;\u2212F&gt;\u2212Cl\\]<\/li>\n\n\n\n<li>\\[\\text{Hyperconjugation: Stability \u221d No. of \u03b1-Hydrogens }\\]<\/li>\n\n\n\n<li>\\[\\text{Index of Hydrogen Deficiency (IHD): } \\text{IHD} = \\frac{2C + 2 + N &#8211; H &#8211; X}{2}\\]<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Key Reactions:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Heterolytic bond fission:\\[\\text{Definition: A covalent bond breaks unequally, then ions form.}\\]\\[\\text{Reaction: } {CH3-Cl -&gt; CH3^+ + Cl^-}\\]\\[\\text{Use: SN1, E1 reactions}\\]<\/li>\n\n\n\n<li>Homolytic bond fission:<br>\\[\\text{Definition: Covalent bond breaks equally \u2192 free radicals form.}\\]\\[\\text{Reaction: }{Cl2 -&gt;[h\\nu] 2 Cl^.}\\]\\[\\text{Use: Free radical substitution.}\\]<\/li>\n\n\n\n<li>\\[\\text{Formation of carbocation: }\\text{HC} \\equiv \\text{CH} + \\text{OH}^- \\longrightarrow \\text{HC} \\equiv \\text{C}^- + H_2O\\]<\/li>\n\n\n\n<li>\\[\\text{Carbanion stability: }\\text{Stability: } CH_3^- &gt; 1^\\circ &gt; 2^\\circ &gt; 3^\\circ\\]<\/li>\n\n\n\n<li>\\[\\text{Formation of free radical: }CH_3-CH_3 \\xrightarrow{h\\nu} CH_3\\cdot + CH_3\\cdot\\]<\/li>\n\n\n\n<li>\\[\\text{Free radical stability: }\\text{Stability: } 3^\\circ &gt; 2^\\circ &gt; 1^\\circ\\]<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Must-Know Stability Orders:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Carbocation: }3^\\circ &gt; 2^\\circ &gt; 1^\\circ &gt; CH_3^+\\]<\/li>\n\n\n\n<li>\\[\\text{Carbanion: }CH_3^- &gt; 1^\\circ &gt; 2^\\circ &gt; 3^\\circ\\]<\/li>\n\n\n\n<li>\\[\\text{Free Radical: }3^\\circ &gt; 2^\\circ &gt; 1^\\circ\\]<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Hydrocarbons<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Most Important Reactions-<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Wurtz Reaction (Alkane Formation): }2R &#8211; X + 2Na \\xrightarrow{\\text{dry ether}} R &#8211; R + 2NaX\\quad \\text{(Mechanism: Free radical coupling)}\\]<\/li>\n\n\n\n<li>\\[\\text{Ozonolysis of Alkenes: }RCH = CHR&#8217; \\xrightarrow{O_3} RCHO + R&#8217;CHO<br>\\quad \\text{(Via ozonide formation and cleavage)}\\]<\/li>\n\n\n\n<li>\\[\\text{Friedel\u2013Crafts Alkylation &amp; Acylation: }C_6H_6 + RCl \\xrightarrow{AlCl_3} C_6H_5R + HCl<br>\\quad \\text{(Mechanism: Electrophilic Aromatic Substitution)}\\]<\/li>\n\n\n\n<li>\\[\\text{Baeyer\u2019s Test: Alkene } + KMnO_4 \\longrightarrow \\text{Vicinal Diol}\\]<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Organic Compounds Containing Halogens<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Finkelstein Reaction: }R &#8211; Cl + NaI \\xrightarrow{\\text{acetone}} R &#8211; I + NaCl<br>\\quad \\text{(Mechanism: } S_N2 \\text{)}\\]<\/li>\n\n\n\n<li>\\[\\text{Swarts Reaction: }R &#8211; Cl + AgF \\longrightarrow R &#8211; F + AgCl\\]<\/li>\n\n\n\n<li>\\[\\text{Dow\u2019s Process &#8211; Mechanism: Nucleophilic Aromatic Substitution: }C_6H_5Cl \\xrightarrow[\\;623\\,K\\;]{NaOH} C_6H_5OH\\]\\[\\quad \\text{(Mechanism: Nucleophilic Aromatic Substitution)}\\]<\/li>\n\n\n\n<li>\\[\\text{Sandmeyer Reaction: }ArN_2^+Cl^- + CuCl \\longrightarrow ArCl + N_2\\]<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Organic Compounds Containing Oxygen<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Lucas Test : } R &#8211; OH + HCl \\xrightarrow{ZnCl_2} R &#8211; Cl\\]<\/li>\n\n\n\n<li>\\[\\text{Williamson Ether Synthesis (SN2): } R &#8211; O^- Na^+ + R&#8217;X \\longrightarrow R &#8211; O &#8211; R&#8217; + NaX<br>\\quad \\text{(Mechanism: } S_N2 \\text{)}\\]<\/li>\n\n\n\n<li>\\[\\text{Aldol Condensation: } 2CH_3CHO \\xrightarrow{NaOH} CH_3CH(OH)CH_2CHO\\]<\/li>\n\n\n\n<li>\\[\\text{Cannizzaro Reaction: } 2HCHO + NaOH \\longrightarrow HCOONa + CH_3OH\\]<\/li>\n\n\n\n<li>\\[\\text{Clemmensen Reduction: }RCOR&#8217; \\xrightarrow{Zn\/Hg,\\;HCl} RCH_2R&#8217;\\]<\/li>\n\n\n\n<li>\\[\\text{Wolff\u2013Kishner Reduction: }RCOR&#8217; \\xrightarrow{NH_2NH_2,\\;KOH} RCH_2R&#8217;\\]<\/li>\n\n\n\n<li>\\[\\text{HVZ Reaction: }RCH_2COOH + Br_2 + P \\longrightarrow RCHBrCOOH\\]<\/li>\n\n\n\n<li>\\[\\text{Esterification: }RCOOH + ROH \\xrightarrow{H_2SO_4} RCOOR + H_2O\\]<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Organic Compounds Containing Nitrogen<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Hoffmann Bromamide Reaction: }RCONH_2 + Br_2 + 4KOH \\longrightarrow RNH_2 + K_2CO_3 + 2KBr + 2H_2O\\]<\/li>\n\n\n\n<li>\\[\\text{Carbylamine Test: }RNH_2 + CHCl_3 + 3KOH \\longrightarrow RNC + 3KCl + 3H_2O\\]<\/li>\n\n\n\n<li>\\[\\text{Diazotization: }\\text{Aniline} + NaNO_2 + HCl \\longrightarrow ArN_2^+Cl^- + 2H_2O\\]<\/li>\n\n\n\n<li>\\[\\text{Coupling Reaction: }ArN_2^+ + \\text{Phenol} \\longrightarrow \\text{Azo Dye}\\]<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Biomolecules<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Peptide Bond Formation: }\\text{Amino Acid} + \\text{Amino Acid} \\longrightarrow \\text{Dipeptide} + H_2O\\]<\/li>\n\n\n\n<li>\\[\\text{Glucose Open Chain: }CHO &#8211; (CHOH)_4 &#8211; CH_2OH\\]<\/li>\n\n\n\n<li>\\[\\text{Sucrose Hydrolysis: }\\text{Sucrose} + H_2O \\longrightarrow \\text{Glucose} + \\text{Fructose}\\]<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Principles Related to Practical Chemistry<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Test<\/td><td>Observation&nbsp;<\/td><\/tr><tr><td>Tollens&nbsp;<\/td><td>Silver mirror&nbsp;<\/td><\/tr><tr><td>Fehling&nbsp;<\/td><td>Brick-red ppt<\/td><\/tr><tr><td>Lucas&nbsp;<\/td><td>Cloudiness&nbsp;<\/td><\/tr><tr><td>Bromine water&nbsp;<\/td><td>Decolourization&nbsp;<\/td><\/tr><tr><td>Baeyer<\/td><td>Purple &#8211; colourless<\/td><\/tr><tr><td>Carbylamine&nbsp;<\/td><td>Foul smell&nbsp;<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Most Important Inorganic Chemistry Formulas For JEE Main<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Classification Of Elements And Periodicity In Properties<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Effective nuclear charge (Z_eff):}\\]\\[\\text{Where Z = atomic number, S = shielding constant}\\]<\/li>\n\n\n\n<li>\\[\\text{Ionisation Energy (IE) Relation:}\\]\\[\\text{Higher Z_eff \u2192 higher ionisation energy}\\]<\/li>\n\n\n\n<li>\\[\\text{Electronegativity (Pauling scale approximate relation) : } \\Delta \\chi = 0.208 \\sqrt{E_{AB} &#8211; \\frac{E_{AA} + E_{BB}}{2}}\\]\\[\\text{Where:}\\]\\[\\Delta \\chi=\u2223\\chi_A\u2212\\chi_B\u2223\\]\\[E_{AB}\u200b = \\text{bond energy of A\u2013B}\\]\\[E_{AA}, E_{BB}\u200b = \\text{bond energies of A\u2013A and B\u2013B}\\]<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Important Concepts \/ Reactions:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Alkali metals reacting with water: }2M + 2H_2O \\longrightarrow 2MOH + H_2 \\uparrow\\]<\/li>\n\n\n\n<li>\\[\\quad (M = \\text{Li, Na, K, Rb, Cs})\\]<\/li>\n\n\n\n<li>\\[\\text{Halogen displacement reactions: }X_2 + 2Y^- \\longrightarrow 2X^- + Y_2\\]<\/li>\n\n\n\n<li>\\[\\quad (\\text{More reactive halogen displaces less reactive halogen})\\]<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; p-Block Elements<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Group 13 (Boron Family):<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Bond energy trend: B\u2013B &gt; B\u2013Al &gt; Al\u2013Al}\\]<\/li>\n\n\n\n<li>\\[\\text{Lewis acidity of } BX_3: \\text{BF}_3 &lt; \\text{BCl}_3 &lt; \\text{BBr}_3 &lt; \\text{BI}_3\\]<\/li>\n\n\n\n<li>\\[\\text{Hydrolysis of Boron halides: } \\text{BCl}_3 + 3 H_2O \\longrightarrow B(OH)_3 + 3 HCl\\]<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Group 14 (Carbon Family):<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Oxidation states: +2 and +4, the stability of +2 increases down the group}\\]<\/li>\n\n\n\n<li>\\[\\text{Important reaction: CO + H\u2082 \u2192 CH\u2084 (Fischer-Tropsch reaction)}\\]<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Group 15 (Nitrogen Family)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Oxidation states: -3 to +5}\\]<\/li>\n\n\n\n<li>\\[\\text{Important reactions: % Formation of Ammonium Chloride}\\]\\[\\text{NH}_3 + HCl \\longrightarrow NH_4Cl\\]\\[\\text{% Haber Process for Ammonia Synthesis}\\]\\[N_2 + 3 H_2 \\xrightarrow[\\text{500 \u00b0C}]{\\text{Fe catalyst}} 2 NH_3\\]<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Group 16 (Oxygen Family)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Oxidation states: } -2 to +6\\]<\/li>\n\n\n\n<li>\\[\\text{Ozone formation: % Ozone Formation }<br>3 O_2 \\xrightarrow{UV} 2 O_3\\]<\/li>\n\n\n\n<li>\\[\\text{Oxidation reactions: } H_2S + Cl_2 \\longrightarrow S + 2 HCl\\]<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Group 17 (Halogens)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Displacement reactions: X\u2082 + Y\u207b \u2192 Y\u2082 + X\u207b}\\]<\/li>\n\n\n\n<li>\\[\\text{Interhalogen formation: ClF\u2083, BrF\u2085}\\]<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Group 18 (Noble Gases)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Oxidation reaction: Xe + F\u2082 \u2192 XeF\u2082}\\]<\/li>\n\n\n\n<li>\\[\\text{Important compounds: XeF\u2082, XeF\u2084, XeF\u2086}\\]<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; d- Block Elements<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Key Formulas &amp; Concepts:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\\[\\text{Electronic configuration: (n-1)d\u00b9\u207b\u00b9\u2070 ns\u00b9\u207b\u00b2}\\]<\/li>\n\n\n\n<li>\\[\\text{Coordination number &amp; geometry:}\\]\n<ul class=\"wp-block-list\">\n<li>\\[\\text{CN = 4 \u2192 tetrahedral\/square planar}\\]<\/li>\n\n\n\n<li>\\[\\text{CN = 6 \u2192 octahedral}\\]<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Important Reactions:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Formation of complexes: } [Fe(H_2O)_6]^{3+} + SCN^- \\longrightarrow [Fe(H_2O)_5(SCN)]^{2+} + H_2O\\]<\/li>\n\n\n\n<li>\\[\\text{Redox reactions: }Fe^{2+} \\longrightarrow Fe^{3+} + e^-\\]<\/li>\n\n\n\n<li>\\[\\text{Ligand substitution: }[Cu(NH_3)_4]^{2+} + 4 Cl^- \\longrightarrow [CuCl_4]^{2-} + 4 NH_3\\]<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Stability of complexes (CFSE concept):<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{\u0394_oct= crystal field splitting energy in octahedral complexes}\\]<\/li>\n\n\n\n<li>\\[\\text{High-spin vs low-spin determination}\\]<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; f- Block Elements<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Important Concepts:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Lanthanide contraction \u2192 affects ionic radius, density, and chemistry of subsequent elements}\\]<\/li>\n\n\n\n<li>\\[\\text{Oxidation state: +3 mostly}\\]<\/li>\n\n\n\n<li>\\[\\text{Actinides \u2192 show +3, +4, +5, +6 depending on element}\\]<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Key Reactions:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Reduction of Lathanides: } \\text{Ln}^{3+} + e^- \\longrightarrow \\text{Ln}^{2+} \\quad (\\text{for some Ln})\\]<\/li>\n\n\n\n<li>\\[\\text{Complex formation with water: }\\text{Ln}^{3+} + 6 H_2O \\longrightarrow [\\text{Ln}(H_2O)_6]^{3+}\\]<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Chapter &#8211; Coordination Compounds<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\\[\\text{Oxidation number of metal:<br>Ox. no. of M-charge on complex\u2212charge on ligands}\\]<\/li>\n\n\n\n<li>\\[\\text{Substitution reaction: }[Co(NH_3)_6]^{3+} + Cl^- \\longrightarrow [Co(NH_3)_5Cl]^{2+} + NH_3\\]<\/li>\n\n\n\n<li>\\[\\text{Chelation with EDTA: }[Ni(H_2O)_6]^{2+} + EDTA^{4-} \\longrightarrow [Ni(EDTA)]^{2-} + 6 H_2O\\]<\/li>\n\n\n\n<li>\\[\\text{Formation constant: } K_f = \\frac{[ML_n]}{[M][L]^n}\\]<\/li>\n\n\n\n<li>\\[\\text{Crystal field splitting (Octahedral): } \\Delta_\\text{oct} \\quad \\text{(Determines color and magnetic properties of the complex)}\\]<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Matrix Topper\u2019s Tricks to Ace Chemistry Formulas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A simple strategy followed by Matrix JEE toppers for chemistry is to focus on NCERT chemistry and master all important formulas. They do not believe in mugging up the reactions and formulas. At Matrix, chemistry is taught in a way to understand the underlying logic behind every formula. This approach has helped Matrix aspirants score 99%ile and above in JEE Main. Here are some effective tips to master chemistry formulas shared by Matrix toppers and faculty:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Matrix topper Rishabh Meel (AIR 70, JEE Advanced) focused on creating a list of frequently occurring formulas in past papers. Rishabh suggests creating a chapter-wise formula sheet from the Matrix modules, which one can refer to while solving numercials as well as revising.<\/li>\n\n\n\n<li>Gaurav Pareek (99.988 %ile, JEE Main 2025) applied a different strategy where he focused heavily on revising high-scoring formulas. He did not rely on memorising all chemistry formulas at once.<\/li>\n\n\n\n<li>Matrix chemistry faculty advised to keep a separate notebook for organic reactions and mechanisms to refer to and revise constantly.<\/li>\n\n\n\n<li>TKD Sir, (Inorganic expert mentor) from Matrix, recommends to learn p-block and coordination formulas thoroughly. Get a good grasp of NCERT &#8211; focus more on periodic tables, oxoacids, and periodic trends as most MCQs come from these topics.<\/li>\n\n\n\n<li>According to Gaurav Jaiswal, sir, formulas from these chapters appear every year: d-block electronic configuration, oxidation state patterns, and stability formulas.<\/li>\n\n\n\n<li>Narendra Kok, sir (IIT Kharagpur Alumni), advises practising mixed-chapter numerical problems to help with faster formula application.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Best Books and Resources to Revise Chemistry Formulas<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Instead of collecting various books for chemistry formulas, toppers advise sticking to the right resources. Matrix JEE Academy has formula booklets and Matrix JEE chemistry modules to master the subject. Buy the <a href=\"https:\/\/www.amazon.in\/Chemistry-Complete-Advanced-Preparation-Questions\/dp\/B0F8JFZ2RS\/ref=sr_1_3?crid=2KBS8YG5YKJEZ&amp;dib=eyJ2IjoiMSJ9.WB4p4cDCYdGjEBiluuDn6j18uIAlGCPebCBAcORBrCHZlEFCNzomRFJiKZ9N4r9kjrAyjFQphFdGxWf8o9FDhuV03cRYzJWw1qTAEhqlY9gvLhLx8yjUyhnt52Z_rt7U4vOgkmYpZdGS6V3FUAJ_I9PvfrboKzhWsiTDpfjAH0zLI6sPy4oVLawlO69v2gn-1QEI4eHz1P6p8J_pSasCscvw07HjihwA0_GuDv2YDXU.T9bhE3pIIuSNfqIWbC4V-WFezIixUeGgX4P27nt9PQg&amp;dib_tag=se&amp;keywords=matrix+jee+chemistry&amp;qid=1764923859&amp;s=books&amp;sprefix=matrix+jee+chemistry+%2Cstripbooks%2C207&amp;sr=1-3\">Matrix chemistry module book set<\/a>, which includes topic-wise formula sheets, past year questions and more.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img width=\"342\" height=\"342\" src=\"https:\/\/www.matrixedu.in\/blog\/wp-content\/uploads\/2025\/12\/image-5.jpeg\" alt=\"\" class=\"wp-image-9151\" style=\"width:167px;height:auto\" srcset=\"https:\/\/www.matrixedu.in\/blog\/wp-content\/uploads\/2025\/12\/image-5.jpeg 342w, https:\/\/www.matrixedu.in\/blog\/wp-content\/uploads\/2025\/12\/image-5-300x300.jpeg 300w, https:\/\/www.matrixedu.in\/blog\/wp-content\/uploads\/2025\/12\/image-5-150x150.jpeg 150w, https:\/\/www.matrixedu.in\/blog\/wp-content\/uploads\/2025\/12\/image-5-256x256.jpeg 256w\" sizes=\"(max-width: 342px) 100vw, 342px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.matrixedu.in\/blog\/jee-main\/\">JEE Main Exam Date 2026<\/a><br><a href=\"https:\/\/www.matrixedu.in\/blog\/jee-main-exam-pattern\/\">JEE Main Exam Pattern 2026<\/a><br><a href=\"https:\/\/www.matrixedu.in\/blog\/jee-main-eligibility-criteria\/\">JEE Main Eligibility Criteria 2026<\/a><br><a href=\"https:\/\/www.matrixedu.in\/blog\/jee-main-admit-card\/\">JEE Main 2026 Admit Card<\/a><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Every JEE topper has one habit of mastering the most important chemistry formulas to top this section. Matrix toppers believe smart study with smart revision is the key to acing the chemistry section in JEE Main. However, aspirants should focus on understanding the formulas and mechanisms as well as revising them regularly. Chemistry is the only section in JEE Main where similar formula-based and reaction-based questions repeat year after year. To crack this pattern, matrix chemistry teachers advise keeping the important formula list handy and revising it once every 10 days.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FAQs<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1765522792898\"><strong class=\"schema-faq-question\">Which Chemistry Chapters are Mostly Formula-Based Compared to Other Chapters?<\/strong> <p class=\"schema-faq-answer\">In JEE Main chemistry, the chapters with the most formula-based questions are in Physical Chemistry, compared to organic chemistry and inorganic chemistry. The chapters include: Mole Concept, Thermodynamics, Electrochemistry, Chemical Kinetics, and Solutions. Formulas from these chapters require direct formula application.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765522817230\"><strong class=\"schema-faq-question\">Is the NCERT Chemistry Book Enough to Study Formulas for JEE Main?<\/strong> <p class=\"schema-faq-answer\">NCERT is enough to study formulas for chemistry JEE Main. For organic chemistry and inorganic chemistry, almost all named reactions, formulas, periodic trends, coordination compound formulas, and qualitative tests are present in the NCERT. But for physical chemistry, coaching materials are needed, as it is dominated by formulas and heavy concepts.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765522844432\"><strong class=\"schema-faq-question\">How Often do Toppers Revise Chemistry Formulas for JEE Main?<\/strong> <p class=\"schema-faq-answer\">Matrix JEE toppers focus on daily revision of chemistry formulas based on the chapter. Full subject formula revision is preferred to be done once a week for better memory retention. During the last 2 months before JEE Main, toppers alternate days, formula revision and solve mixed-chapter numericals to score higher and build confidence.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765522858491\"><strong class=\"schema-faq-question\">Can I Crack the Chemistry Section in JEE Main Just by Memorising Formulas?<\/strong> <p class=\"schema-faq-answer\">Memorising formulas alone is not sufficient to crack chemistry in JEE Main. JEE Main exam tests both conceptual clarity as well as formula application. Along with mastering formulas, if aspirants focus on mastering concepts and understanding the logic behind each formula and mechanism. With this strategy, aspirants can successfully crack the JEE Main chemistry section.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765522875493\"><strong class=\"schema-faq-question\">Which Section in Chemistry is the Most Scoring Section for JEE Main?<\/strong> <p class=\"schema-faq-answer\">Physical chemistry is the easiest sub-section of chemistry compared to organic and inorganic chemistry. As physical chemistry is dominated by formulas, mastering them means mastering this section. JEE aspirants can score 25-30 marks out of 100 by cracking physical chemistry formulas.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765522894824\"><strong class=\"schema-faq-question\">Which Chemistry Chapters Have the Highest Weightage in the JEE Main Exam?<\/strong> <p class=\"schema-faq-answer\">The chemistry chapters that frequently occur every year with the highest weight are: Thermodynamics, Electrochemistry, Chemical Kinetics, Coordination Compounds, p-Block Elements, Aldehydes &amp; Ketones, and Hydrocarbons. They contribute to 60% of the chemistry questions in the JEE Main paper.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765527858759\"><strong class=\"schema-faq-question\">How to download the Most Important Chemistry Formulas for JEE Main?<\/strong> <p class=\"schema-faq-answer\">Students can download the <a href=\"https:\/\/www.matrixedu.in\/blog\/wp-content\/uploads\/2025\/12\/Most-Important-Chemistry-Formulas-for-JEE-Main.pdf\">Chemistry Most Important Chemistry Formulas for JEE Main PDF<\/a> from the link provided here.<\/p> <\/div> <\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Most Important Chemistry Formulas for JEE Main Knowing the most important chemistry formulas for JEE Main is a game-changer in&#8230;<\/p>\n","protected":false},"author":13,"featured_media":9153,"comment_status":"closed","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"footnotes":""},"categories":[99,110],"tags":[],"class_list":["post-9118","post","type-post","status-publish","format-standard","has-post-thumbnail","category-jee-main","category-matrix-jee-academy"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Most Important Chemistry Formulas for JEE Main<\/title>\n<meta name=\"description\" content=\"Check out Most Important Chemistry Formulas for JEE Main 2026 exam. Download PDF of formula sheet for free along with important books and tricks to top the JEE main Chemistry exam.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.matrixedu.in\/blog\/most-important-chemistry-formulas-for-jee-main\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Most Important Chemistry Formulas for JEE Main\" \/>\n<meta property=\"og:description\" content=\"Check out Most Important Chemistry Formulas for JEE Main 2026 exam. Download PDF of formula sheet for free along with important books and tricks to top the JEE main Chemistry exam.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.matrixedu.in\/blog\/most-important-chemistry-formulas-for-jee-main\/\" \/>\n<meta property=\"og:site_name\" content=\"My career: EduBlog of Matrix\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/matrixsikar\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-12T08:31:25+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-21T08:36:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.matrixedu.in\/blog\/wp-content\/uploads\/2025\/12\/Most-Important-Chemistry-Formulas-for-JEE-Main-img.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1530\" \/>\n\t<meta property=\"og:image:height\" content=\"700\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"mohit\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@matrixSikar\" \/>\n<meta name=\"twitter:site\" content=\"@matrixSikar\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"mohit\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"16 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":[\"Article\",\"BlogPosting\"],\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/\"},\"author\":{\"name\":\"mohit\",\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/#\\\/schema\\\/person\\\/7c4d58f60ceb32c95c608315d67a7733\"},\"headline\":\"Most Important Chemistry Formulas for JEE Main\",\"datePublished\":\"2025-12-12T08:31:25+00:00\",\"dateModified\":\"2026-03-21T08:36:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/\"},\"wordCount\":4047,\"publisher\":{\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/Most-Important-Chemistry-Formulas-for-JEE-Main-img.webp\",\"articleSection\":[\"JEE Main\",\"Matrix JEE Academy\"],\"inLanguage\":\"en-US\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/\",\"url\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/\",\"name\":\"Most Important Chemistry Formulas for JEE Main\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/Most-Important-Chemistry-Formulas-for-JEE-Main-img.webp\",\"datePublished\":\"2025-12-12T08:31:25+00:00\",\"dateModified\":\"2026-03-21T08:36:55+00:00\",\"description\":\"Check out Most Important Chemistry Formulas for JEE Main 2026 exam. 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The chapters include: Mole Concept, Thermodynamics, Electrochemistry, Chemical Kinetics, and Solutions. Formulas from these chapters require direct formula application.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/#faq-question-1765522817230\",\"position\":2,\"url\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/#faq-question-1765522817230\",\"name\":\"Is the NCERT Chemistry Book Enough to Study Formulas for JEE Main?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"NCERT is enough to study formulas for chemistry JEE Main. For organic chemistry and inorganic chemistry, almost all named reactions, formulas, periodic trends, coordination compound formulas, and qualitative tests are present in the NCERT. But for physical chemistry, coaching materials are needed, as it is dominated by formulas and heavy concepts.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/#faq-question-1765522844432\",\"position\":3,\"url\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/#faq-question-1765522844432\",\"name\":\"How Often do Toppers Revise Chemistry Formulas for JEE Main?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Matrix JEE toppers focus on daily revision of chemistry formulas based on the chapter. Full subject formula revision is preferred to be done once a week for better memory retention. During the last 2 months before JEE Main, toppers alternate days, formula revision and solve mixed-chapter numericals to score higher and build confidence.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/#faq-question-1765522858491\",\"position\":4,\"url\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/#faq-question-1765522858491\",\"name\":\"Can I Crack the Chemistry Section in JEE Main Just by Memorising Formulas?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Memorising formulas alone is not sufficient to crack chemistry in JEE Main. JEE Main exam tests both conceptual clarity as well as formula application. Along with mastering formulas, if aspirants focus on mastering concepts and understanding the logic behind each formula and mechanism. With this strategy, aspirants can successfully crack the JEE Main chemistry section.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/#faq-question-1765522875493\",\"position\":5,\"url\":\"https:\\\/\\\/www.matrixedu.in\\\/blog\\\/most-important-chemistry-formulas-for-jee-main\\\/#faq-question-1765522875493\",\"name\":\"Which Section in Chemistry is the Most Scoring Section for JEE Main?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Physical chemistry is the easiest sub-section of chemistry compared to organic and inorganic chemistry. As physical chemistry is dominated by formulas, mastering them means mastering this section. 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