Studying for IIT JEE Exam is already a tiresome job, because there's a lot to learn - Chemistry, Physics and Mathematics. Moreover the level of questions being asked in IIT JEE is quite high as compared to other exams like CBSE Board Exams or other states board exams.That's why you need to use a unique way to understand\/study each of subject in IIT JEE Syllabus. In this article, I will discuss about Best Approach to Study Chemistry for IIT JEE Exam as to solve Chemistry questions quickly and correctly.\n\n\n\n\nLet's see first what are different parts of Chemistry from which questions are asked in IIT JEE Exam.\n\n\n\nPhysical ChemistryOrganic ChemistryInorganic Chemistry\n\n\n\n\nLet's discuss now How to correctly study Physical Chemistry, Organic Chemistry and Inorganic Chemistry for IIT JEE Exam.\n\n\n\nHow to study Physical Chemistry for IIT JEE\n\n\n\nPhysical Chemistry involves topics like Chemical Equations, Concentration of Solutions, States of Matter (Solid, Liquid, Gas), Atomic Structure, Thermodynamics, Equilibrium, ElectroChemistry, Chemical Kinetics, Solid State of Matter, Surface Chemistry, Nuclear Chemistry.As there is a lot in Physical Chemistry that need to be studied for IIT JEE Exam, so below I will discuss about each of topic and How to study it for IIT JEE Exam.\n\n\n\nStudying Chemical Equations for IIT JEE Exam\n\n\n\nUnderstand Basics of Chemical Equations like Atomic Symbols for different elements in periodic tableLearn Molecular formulas of well known compounds (Like NaCl for Salt)Learn Balancing of Chemical EquationsLearn Oxidation-Reduction Reactions and How these workLearn Concentration Formulas like Morality, Molality, Normality, Mole Fraction and also practice how to calculate these when different information about a Solution is given\n\n\n\nStudying Concentration of Solutions for IIT JEE Exam\n\n\n\nLearn about How to find concetration of a Solution and different mathematical equations which can be used for measuring concentration of solution like Density, Morality, Molality, Normality etc.Learn Raoult's LawLearn about Elevation\/Depression of Boiling Point and Freezing Point\n\n\n\nStudying States of Matter for IIT JEE Exam\n\n\n\nLearn about Absolute Scale of temperatureIdeal Gas Equation and practice some questions related to thisVan Der Waals equation, keep in mind to both practice numerical questions and conceptual questions related to thisLearn about Kinetic Theory of Gases and practice numerical\/conceptual questions related to itLearn about different types of Velocities of particles in matter like Root Mean Square VelocityPractice Numerical related to law of partial pressuresLearn about concept of Gases Diffusion\n\n\n\nStudying Atomic Structure for IIT JEE Exam\n\n\n\nLearn Bohr Model and practice conceptual questions related to it. (I would also recommend you to try out some numericals related to it as well)Spectrum of Hydrogen Gas (Sometimes specifically in JEE Mains one or two questions can come from this topic so better to learn it)Uncertainty PrincipleOrbital Configuration and Shapes of s, p, d orbitals. (Practice writing orbital configuration of an element, if its atomic number is given)Orbital Energy for Hydrogen (This is quite important for IIT JEE Mains Exam, as usually at least one question come from this topic in the exam)VSEPR Theory (Valence Shell Electron Pair Repulsion Theory)Learn about What would be shape of a molecule using VSEPT Theory\n\n\n\nStudying Thermodynamic for IIT JEE Exam\n\n\n\n\n\n\n\nStudying Equilibrium for IIT JEE Exam\n\n\n\nLearn about basics of Equilibrium like What is Equilibrium?, What are its types? and other basic stuff about it. After that practice some conceptual problems about it so as to test whether you have understood Equilibrium or notLearn about Law of Mass ActionLearn about Equilibrium Constant and practice some numerical problems related to itLearn how to solve Solubility Product questions (Look for these questions on Google or check out some Chemistry Book)Practice only conceptual questions about Common Ion EffectLearn about Buffer Solutions and practice questions related to Calculating pHLearn about concepts of Bronsted and Lewis Acid\/Bases, then practice some conceptual problems related to this. Specifically focus on questions like which of following is Bronsted Base? or What amongst these four are Lewis Acid? and other similar questions like thisLearn about Hydrolysis of Salts. In Chemistry Books, there are a lot of Equations related to this but I would recommend you not to just memorize all those. Because that will make you confused when your sitting in the exam and trying to memorize which equation to use in this scenario (Happened with me when I was writing my IIT JEE Mains Exam\ud83d\ude05 \ud83d\ude06 ). Rather than Memorizing Different Questions, Just try to keep in mind what's actual concept of Hydrolysis of Salts and remember only fewer equations.\n\n\n\nStudying ElectroChemistry for IIT JEE Exam\n\n\n\nLearn basics of ElectrocChemical Cells and How does Cell Reactions work?Learn fundamentals of Electrode Potentials(Very Important) Learn and memorize Nernst Equation, practice some numerical related to it. Also focus on theoretical questions related to it, as sometimes in JEE Mains rather than asking numerical question about Nernst Equation a theoretical\/conceptual question is askedLearn Faraday's Law of ElectrolysisLearn Kohlrausch's Law and practice questions about it\n\n\n\nStudying Chemical Kinetics for IIT JEE Exam\n\n\n\nLearn fundamentals of chemical kinetics like What's Rate of Chemical Reactions?, What's Order of reaction?, What's Rate Constant? and different orders of reactions like - First, Second, Third Order Reactions. Regarding all these concepts put more focus on theoretical\/conceptual questions rather than focusing on numerical questionsLearn Arrhenius Equation and practice numerical questions related to it\n\n\n\nStudying Solid State of Matter for IIT JEE Exam\n\n\n\nLearn about packing of solid states like fcc, bcc and hcp lattices. (This is quite important as sometimes in JEE Mains direct question asking what's lattice structure of a compound is asked)Learn about Seven Crystal Systems and practice figuring out what's crystal system of a compound based on parameters like a, b, c\n\n\n\nStudying Surface Chemistry for IIT JEE Exam\n\n\n\nLearn about Adsorption and Colloids, do n't focus much on questions practicing side for this topicLearn about compositions of different kinds of surfactants, sometimes in JEE Mains questions like what's composition of this particular surfactant is asked\n\n\n\nStudying Nuclear Chemistry for IIT JEE Exam\n\n\n\nLearn Fundamentals of Nuclear Chemistry concepts like RadioActivity - Isotopes, Isobars.Learn different types of Nuclear Reactions like Fission and Fusion(No need to focus much on this topic for IIT JEE Exam, rarely some question is asked from this topic in the exam)\n\n\n\nHow to study Organic Chemistry for IIT JEE Exam\n\n\n\nIn the syllabus for IIT JEE Exam, there are many topics from Organic Chemistry. Let's first breakdown Organic Chemistry into different sections and then discuss how to study each that section so as to prepare for IIT JEE Exam.These sections are => Fundamentals of Organic Chemistry, Alkanes, Alkenes, Alkynes, Benzenes, Phenols, Carbohydrates, Practical Organic Chemistry.Let's now discuss How to study each of these section of Organic Chemistry to get better rank in IIT JEE Exam.\n\n\n\nStudying Fundamentals of Organic Chemistry for IIT JEE\n\n\n\nFirst start from basics of Organic Chemistry and learn What's Organic Chemistry?What's Organic Compounds?From what organic compounds are made of?What type of chemical bonding is there in organic compounds?How to draw the structure of an organic compound, when its name is given?How to name an organic compound, if its structure is given? (Sometimes in IIT JEE Mains, atleast 2 this type of questions come)Hybridisation of Carbon (Questions related to finding what's hybridisation of a carbon atom in an organic compound are commonly asked in JEE Mains Exam)Isomerism (Learn about both types of it - Strucutural and Geometrical). Also practice questions of type - Like Find out which one of options is true, then there will four options each option having 4 compounds and you need to select which option have all of compounds as Structurally or Geometrically IsomericLearn IUPAC Nomenclature Rules so as to give names to different organic compounds, usually in IIT JEE Mains exam questions like what's name of following compound? and structure of compound will be given. Sometimes from this IUPAC Naming quite tricky questions are asked, but those can be done easily. If you read\/remember all of IUPAC Naming Rules given in NCERT Book.Keto-Enol Tautomerism (Just grasp what it is and try to keep this in your mind)Emipical and Molecular Formulas, usually in IIT JEE Mains questions like - Given a Chemical Reaction there will be some compound named like A or B and then you need to find out What's its Molecular Formula.Learn and try to remember also what are physical\/chemical properties of alcohols and carboxylic acids. (I would recommend you to just keep in mind these physical\/chemical properties which are mentioned in Chemistry NCERT Book)Learn method to find out reaction intermediates, for example - If a chemical reaction is given then finding out what are reaction intermediates during process of reactants reacting with each other to form a productLearn about Carbocations, Carbanions and their properties as well. Try to focus more on properties as usually in IIT JEE Mains Exam questions about trends of properties in Carbocations\/Carbanions are asked. For example - Which of following is correct trend of increasing solubility of following carbocations? And then there will be four options having different trends and you need to select correct one\n\n\n\nStudying Alkanes for IIT JEE Exam\n\n\n\nFirst and foremost learn about Alkanes itself (I mean fundamentals of Alkanes) like What's type of bonding in Alkanes?, What are physical\/chemical properties of Alkanes?Learn IUPAC Nomenclature rules for Alkanes, this is quite important as IUPAC Naming related questions are quite common in IIT JEE Mains ExamLearn Chemical Reactions which Alkanes can undergo through. For example - Halogenation, Oxidation, Thermal Cracking etc.Specifically learn Named Reactions which can be used for preparation of Alkanes. Sometimes in IIT JEE Mains exam, questions like Which of following process can be used for preparing (some alkane name\/formula) at industrial scale?\n\n\n\nStudying Alkenes for IIT JEE Exam\n\n\n\nSimilar to Alkanes, firstly learn fundamentals of Alkenes - What's type of chemical bonding in Alkenes?, What's physical\/chemical properties of Alkenes?Learn IUPAC Nomenclature rules for Alkenes so as if some question related to this come in IIT JEE Mains Exam then you can answer it quicklyPutting lot more emphasis on this, I would encourage to completely understand and remember all of reactions which can be done on AlkenesRember Named reactions which can be performed on Alkenes\n\n\n\nStudying Alkynes for IIT JEE Exam\n\n\n\nFirst and foremost learn about What type of bonding is there in Alkynes and what are their physical\/chemical properties. (Specifically try to remember trends like Increasing\/Decreasing Boiling Points)Remember reactions which can be used for preparing Alkynes from Alkanes and AlkenesLearn nomenclature of Alkynes (Using IUPAC Standards)Learn named reactions which can be performed on Alkynes, (Try to remember product name\/structure which is formed from these reactions)Reduction reactions of AlkynesPreparation of Alkynes using Elimination Reactions\n\n\n\nStudying Benzene for IIT JEE Exam\n\n\n\nFirstly learn about Structure of Benzene and Benzene RingLearn IUPAC Naming Rules for Benzene compounds, (Sometimes a weird compound will be given in the IIT JEE Mains Exam and you need to name it using IUPAC Naming Rules)Reactions of Benzene like Halogenation, Nitration, Sulphonation, Friedel-Crafts Alkylation and AcylationLearn about different types of effects on acidity\/basicity of mono substituted benzenes compounds, questions in IIT JEE Mains are asked from this topic in which you need to either find which of trend is correct for acidity\/basicity. (If you learn properly about different types of effects like o-, m-, p- directing groups then it would be super easy to solve this type of questions)\n\n\n\nStudying Phenols for IIT JEE Exam\n\n\n\nLearn about Basics of Phenols like what are phenols itself?, what are different types of phenols?Learn some preparation methods and IUPAC Nomenclature of PhenolsMost importantly learn "Acidity of Phenols" as questions like compare the acidity trend of these four phenols\/compounds are asked in IIT JEE MainsSubstitution Reactions of PhenolsHalogenation of PhenolsNitration of PhenolsSulphonation of PhenolsLearn named reactions and their mechanisms as well which can be performed on Phenols for example - Reimer Tieman Reaction and Kolbe Reaction\n\n\n\nStudying Carbohydrates for IIT JEE Exam\n\n\n\nFirstly learn about Classification of CarbohydratesMono SaccharidesDi SaccharidesLearn about different reactions which can be performed on CarbohydratesOxidation of CarbohydratesReduction of CarbohydratesGlycoside Formation ReactionHydrolysis of CarbohydratesLearn about Amono Acids, Peptides and their properties as well (Not that important for IIT JEE Mains)Learn properties, uses and reactions related to following well known CarbohydratesNatural RubberCelluloseNylonTeflonPVC (Polyvinyl Chloride)\n\n\n\nHow to study Inorganic Chemistry for IIT JEE\n\n\n\nInorganic Chemistry is often considered boring as students need to memorize a lot of stuff.In order to better understand how to study Inorganic Chemistry for IIT JEE, let's first break it down to see what sections are there which need to be studied for IIT JEE Exam.InOrganic Chemistry can be broken down into(from JEE Exam perspective only) Preparation of Non-Metals, Preparation Methods and Properties of ionic compounds, Transition Elements, Metallurgy.Let's now see How to study each of these sections of Inorganic Chemistry to get good marks in IIT JEE Exam.\n\n\n\nStudying Preparation of Non-Metals for IIT JEE Exam\n\n\n\nLearn properties and preparation methods for following compoundsBoronSiliconNitrogenPhosphorusOxygenSulphueHalogens like ChlorineLearn and remember properties of different allotropes of carbon like Diamond, GraphiteSimilarly to Carbon Allotropes, learn and remember different allotropes of Phosphorus and SulphurOne important thing about Allotropes of Carbon, Phosphorus and Sulphur - Try to learn properties\/structures of different allotropes of each one of these (Sometimes questions comparing allotropes of an element is asked in IIT JEE Exam)\n\n\n\nStudying Preparation Methods and Properties of Ionic Compounds for IIT JEE Exam\n\n\n\nStudy Preparation Methods and Properties of following Ionic CompoundsOxidesPeroxidesHydroxidesCarbonatesBicarbonatesChlorides of Sodium, Potassium, Magnesium, CalciumSulphates of Sodium, Potassium, Magnesium, CalciumOxides of Carbon like Carbon dioxide CO2Oxyacids of Carbon like Carbonic Acid H2CO3Silicones, Silicates and Silicon CarbideOxides, Oxyacids of Nitrogen and AmmoniaPhosphorus Oxides, Oxyacids and PhosphineAcids of Phosphorus like Phosphorus Acid H3PO4Oxygen compounds like Ozone, Hydrogen PeroxideSulphur Compounds like Hydrogen Sulphide, Sulphur Oxides (SO2 and SO3)Acids of Sulphur like Sulphurous Acid(H2SO3), Sulphuric Acid(H2SO4)Learn properties and uses of Bleaching Powder\n\n\n\nStudying Transition Elements for IIT JEE Exam\n\n\n\nFirstly learn about d-orbital and properties of compounds known as 3d Elements in Periodic TableRemember properties trends in 3d Elements for example - Increasing order of boiling points, Decreasing order of freezing points, Increasing acidity trend, Increasing solubility trend etc. (Memorize similar trends like to this)Learn about different oxidation states of 3d series elementsAlso focus more on stabilities of different oxidation states of an elementLearn How to calculate spin-only magnetic moment of these 3d elementsLearn Coordination CompoundsFirstly learn about What are Coordination Compounds?Then learn Coordination Bonds and how these are formed, suitable conditions for formation of coordination bond between two atomsNomenclature of compounds containing coordination bonds (Sometimes a question is asked in IIT JEE Mains about this)Properties of Coordination Compounds both Physical and ChemicalAlso try to remember some of reactions which are discussed in Chemistry NCERT Book for class 12thCis and Trans IsomerismSpecifically focus on identifying whether two given structures of compound are cis\/trans isomers or notMaking cis\/trans isomers of a given compound formula or chemical structureIdentifying Hybridisation\/Geometries of coordination compounds formed by d Series ElementsUsually questions like what would be geometry of this compound are asked in IIT JEE Mains ExamAlso questions like identifying hybridisation of central atom in a d series compound are asked in IIT JEE Mains Exam\n\n\n\nStudying Metallurgy for IIT JEE Exam\n\n\n\nLearn about named reactions\/processes which can be used for extracting elements from ores, sometimes specific questions like Which of following process is used in industry for extracting element name? (This question can be just answered, if you memorize names of processes and element for which it is used)Reduction Method for Extracting ElementsCarbon Reduction Method for extracting Iron, Tin and other elements from their respective oresLearn self reduction method for extracting Copper and Lead from their oresQuestions like Which of following element can be extracted using reduction method can be asked in IIT JEE Mains ExamLearn Electrolytic Reduction Method for extracting Magnesium and Aluminium from their oresLearn Cyanide Process for extracting Gold, Silver from their respective ores\n\n\n\nFinal Thoughts on Studying Chemistry for IIT JEE Exam\n\n\n\nI would recommend you to first read NCERT Chemistry Books of Class 11th, 12th. Then practice questions from some Chemistry Question Bank Type Book. Moreover when exam is close by, like just few days or weeks are left. Then try to use Chemistry Cheat Sheets available online to memorize the concepts which you have already learned through out, your preparation.