Important Topics for JEE MAINS 2016 Chemistry | Scoring Topics
Chemistry is believed to be the best scoring subject for JEE Exam. JEE Main constitute of 30 questions of Chemistry section carrying 4 marks each. In order to qualify for JEE Advanced exam a candidate must clear the cut off marks for each and every subject. JEE Advanced 2015 cut off marks for chemistry is:-
|General||Equal to or more than 17|
|OBC||Equal to or more than 16|
|SC||Equal to or more than 9|
|ST||Equal to or more than 9|
|General-Pwd||Equal to or more than 9|
|OBC-Pwd||Equal to or more than 9|
|SC-Pwd||Equal to or more than 9|
|ST-Pwd||Equal to or more than 9|
It means a candidate who appeared for JEE Mains 2015 exam must have secured at least 17 marks (for general category) to qualify for JEE Advanced exam ignoring the marks of other subjects. JEE Advanced 2016 cut off marks will be almost coherent to the cut off marks of 2015.
In order to help you out I did a complete study about some most important topics for jee mains 2016 chemistry part and have find out the top 10 scoring topics of JEE Mains 2016 chemistry.
These ten topics have three topics which are must for every candidate who want to qualify for JEE Advanced and other seven topics are also scoring. These ten topics are enough to get a good rank in JEE Main exam or one can say that these ten topics are the most important topics for jee mains 2016 chemistry part.
I did some hard work and searched last 10 years questions of AIEEE/JEE Main to find out the number of question asked from each and every particular topic of chemistry so that you can prepare smartly. So here is the list of important topics for jee mains 2016 chemistry.
Important Topics for JEE MAINS 2016 Chemistry:-
Do or Die Topics: –
Here are three Do or Die topics of chemistry which are the most important for scoring in JEE Mains 2016. Every year CBSE ask at least three or more questions from each of these topics which comprise total of 36 marks.
If you prepare these topics by heart then no one will stop you to qualify for JEE Advanced. Here are the numbers of questions asked in the AIEEE/JEE Main from these topics in between 2008 to 2016.
And it is expected that JEE Main 2016 Chemistry portion have majority of the questions from these topics only.
|Chapter Name||Year (20-|
|Carbohydrates, Amino Acids and Polymers||3||3||1||3||1||2||2||2||2|
|Transition Elements and Co-Ordination Chemistry||4||3||3||2||4||2||3||4||3|
|Periodic Table and Representative Elements||4||1||3||3||4||3||1||4||3|
1.) Carbohydrates, Amino Acids and Polymers: – This is among the important topics for jee mains 2016. In JEE Mains 2015 there were three question from this topic comprising total of 12 marks. Below is the syllabus from Carbohydrates, Amino Acids and Polymers. Don’t leave this topic because it is expected that JEE Main 2016 chemistry portion will have at least 12-15 marks question from this topic.
Classification of carbohydrates into aldoses and ketones, constituent monosaccharides of oligosaccharides (sucrose, maltose, lactose) and polysaccharides (starch, cellulose, glycogen), monosaccharides (glucose and fructose)
Classification of Polymers, Types of Polymerisation Reactions, Biodegradable Polymers, Polymers of Commercial Importance, copolymerization, natural and synthetic rubber and vulcanization, important polymers like polythene, nylon, polyester and Bakelite use and emphasis on their monomers,
2.) Transition Elements and Co-Ordination Chemistry: – This is yet another do and die topic among the most important topics for jee mains 2016. From last three year CBSE was asking at least four questions from this topic. Transition Elements require mugging up ability while the co-ordination chemistry has concepts to understand. Here is the syllabus of Transition elements and co-ordination chemistry for JEE Main 2016.
General Introduction of Transition Elements, electronic configuration, occurrence and characteristic, trends in properties of the first row transition elements – oxidation states, magnetic properties, physical properties, atomic radii, interstitial compounds, preparation, properties and uses of K2Cr2O7 and KMnO4, ionization enthalpy, magnetic properties, alloy formation, colour, catalytic behaviour, complex formation.
Inner Transition Elements:-
Lanthanoids – Oxidation States of Lanthanoids, Electronic Configuration, chemical reactivity and lanthanoid contraction.
Actinoids – Electronic configuration and oxidation states.
Introduction to co-ordination compounds, denticity, Werner’s theory, IUPAC nomenclature of mononuclear co-ordination compounds, Bonding-Valence bond approach, ligands, co-ordination number, basic idea of Crystal field theory, Importance of co-ordination compounds (in qualitative analysis, extraction of metals and in biological systems, chelation, isomerism, colour and magnetic properties.
3.) Periodic Table and Representative Elements: – The topic consists of S and P Block elements. S Block elements contain the elements from Group 1 and Group 2 whereas P Block elements contain elements from Group 13 to Group 18. The topic is very scoring as you will definitely get minimum of 12 marks questions in JEE Main 2016. Syllabus of JEE Main 2016 from Periodic table and representative elements topic is given here.
S Block Elements
Group 1 and Group 2 Elements: – General introduction, electronic configuration, general trends in physical and chemical properties of elements, anomalous properties of the first element of each group, diagonal relationships. Properties and preparation of some important compounds – sodium chloride, sodium hydrogen carbonate, sodium carbonate and sodium hydroxice, Industrial uses of lime, limestone, Cement and Plaster of Paris, Biological significance of Mg, K, Ca and Na.
Group 13 to Group 18 Elements:- General Introduction of elements, their electronic configuration and general trends in physical and chemical properties of elements across the periods and down the groups, group wise study of each and every group, unique behaviour of the first elements in each group.
Group 13- Properties, uses and preparation of boron and aluminium; Properties, uses and structure of borax, boric acid, boron trifluoride, aluminium chloride, diborane and alums.
Group 14- Structure, properties and uses of allotropes and oxides of carbon, zeolites, silicon tetrachloride and silicones.
Group 15- Use and properties of phosphorus and nitrogen; Allotrophic forms of phosphors; Uses, structure, preparation and properties of ammonia, nitric acid, phosphine and phosphorus halides; Structure of oxides and oxoacids of phosphorus and nitrogen.
Group 16- Structure, preparation, uses and properties of oxone and dioxygen; Allotropic forms of sulphur; Properties, preparation, uses and structure of sulphur dioxide, sulphuric acid (including its industrial preparation; Structures of oxoacids of sulphur.
Group 17- Properties, uses and preparation of chlorine and hydrochloric acid; Trends in the acidic nature of hydrogen halides; Structures of Interhalogen compounds and oxides and oxoacids of halogens.
Group 18- Uses and occurrence of noble gases; Structures of fluorides and oxides of xenon.
Other Important Topics: –
As I promised to provide you top 10 important topics for jee mains 2016. So here are other seven topics which are also important for JEE Mains 2016 if you want to get a decent rank. Name of the topic with number of question asked in particular year in JEE Main/AIEEE is given below.
|Chapter Name||Year (20-|
|Solution and Colligative Property||1||1||2||2||3||2||2||2||3|
4.) Chemical Bonding: – Chemical Bonding have mainly four subtopics and they are Ionic Bonding, Covalent Bonding, Quantum mechanical approach to covalent bonding and Molecular Orbital Theory. Here is the syllabus of IIT JEE Mains 2016 from Chemical Bonding Topic.
Ionic Bonding –
Formation and factors affecting the formation of ionic bonds, calculation of lattice enthalpy.
Covalent Bonding –
Fajan’s rule, concept of electronegativity, dipole moment; (VSEPR) Valence Shell Electron Pair Repulsion theory and shapes of simple molecules.
Quantum mechanical approach to covalent bonding –
Valence bond theory and its important features, concept of hybridization involving s,p and d orbitals, Resonance.
Molecular Orbital Theory (MOT)-
MOT description and important features, types of molecular orbitals (bonding, ant bonding), sigma and pi-bonds, concept of bond order, bond energy, molecular orbital electronic configurations or homonuclear diatomic molecules, bond length.
5.) Gaseous State: – Gaseous state is a topic from physical chemistry and is believed to be one of the easiest chapter of physics chemistry. All you need to learn some formulas with little understanding of concepts. The syllabus of JEE Mains 2016 from gaseous state is provided here.
Measurable properties of gases; Gas laws – Charle’s law, Boyle’s law, Avogadro’s law, Graham’s law of diffusion, Dalton’s law of partial pressure; Ideal gas equation, concept of absolute scale of temperature, kinetic theory of gases (only postulates); Concept of average, root mean square and most probable velocities; Real gases, deviation from Ideal behaviour of real gas, compressibility factor, van der Walls equation, liquefaction of gases, critical constants.
6.) Chemical Kinetics: – It is a must and easy topic of physical chemistry. You can easily fetch four to eight marks in your JEE Main exam. Find the syllabus of JEE Mains 2016 from Chemical kinetics topic.
Rate of 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 unites, 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).
7.) Solution and Colligative Property:- Solution and Colligative property also have good weight-age of around 4-8 marks in JEE Main exam and is among the important topics for JEE Mains 2016. Do read out the syllabus of JEE Main 2016 chemistry from this topic.
Different methods for expressing concentration of solution – molarity, molality, mole fraction, percentage ( by volume and mass both), vapour pressure of solutions and Raoult’s Law – Ideal and non-ideal solutions, vapour pressure – composition, plots for ideal and non-ideal solutions; Colligative properties of dilute solutions – relative lowering of vapour pressure, 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.
8.) Atomic Structure: – Atomic structure is important as well as scoring topic of physical chemistry. There are some set of formulas in this topic which you need to learn by heart and each formula have a concept behind it that you need to understand. These are the sub topics from Atomic Structure for JEE Mains 2016.
Discovery of sub-atomic particles (electron, proton and neutron); 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 reactions of energy of the electron and radii of the different orbits, limitations of Bohr’s model; Dual nature of matter, de-Broglie’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; Variation of Ψ and Ψ2 with r for 1s and 2s orbitals; various quantum number (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 or elements, extra stability of half-filled and completely filled orbitals.
9.) Electrochemistry: – This is another good topic for your JEE Main 2016 preparation. Electrochemistry carries a weight-age of 4-8 marks in JEE Main exam.
Electrolytic 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 potential and Gibb’s energy change; Dry cell and lead accumulator; Fuel cells; Corrosion and its prevention.
10.) Ionic Equilibrium: – Last but not the least important topic for jee mains 2016 is Ionic Equilibrium. The topic also carries some formulas. Do not just mug up the formulas rather learn them by understanding of concepts. Here is the syllabus for JEE Mains 2016 from 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.
So here are top ten important topics for JEE Mains 2016 Chemistry out of which three of them are must. You can’t say not to those three topics. If you just want to meet the criteria for JEE Advanced then the three topics which I shared in the beginning are enough and to get a decent rank in IIT JEE Main 2016 prefer doing all the ten topics first. The topics are also important for JEE Advanced 2016 exam point of view.
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