Ionic Compounds Note Sheet: Fill & Download for Free

We can! This scenario is exactly what happens when you break ANY magnet. Now, I know, this isn't what you wanted to hear, but it's perfectly true. And if you applied the same energy, you could re-fuse the magnet. Now onto a better answer with non-magnetic materials? I can tackle that, too.You cut a piece of aluminum from a block. Then, you attempt to place the pieces together, but cannot seem to, correct? That's because what you're trying has likely already been done. The external surface needs to be content on a molecular level, and so it probably oxidizes. You get Al2O3. Not to say it's perfect; you very well may get some different ionic compounds. And they form almost instantaneously. Interestingly noted, the "shine" to metals is the outer layer of metal oxide. Anodizing, or specifically applying an electric current to the metal causes a thicker layer of translucent metal oxide, and Rayleigh scattering can occur, giving blues and purples like the sky. But the problem is that this happens with everything we do. Whether it be breaking a plate, a glass, cutting metal, or anything you can think of, there are molecular changes on the surface that happen as quickly as the physical change. So, you may ask, how do we undo this? How can we apply enough energy to undo the break? It's surprisingly easy.Back to the aluminum. Do we have the original mold? Melt down the metal and remove impurities. Keep the good metal off to the side. Melt the impurities. Attempt to remove skim a couple times. Add the best to the aluminum saved. Melt and remove impurities AGAIN. Pour all into the original mold. That's the closest you're going to get, because unless you can de-oxidize the entire surface of the aluminum block, you have changed surfaces.But one more try!!! Say we do it in a vacuum. Not a puny lab-grade vacuum. Not space. But a true vacuum, where somehow all we have is the aluminum and no other matter inside. No oxidation. No weird bonds to other elements. And to avoid contamination, the block is cut via laser. So how do we put it back together? Well, that's hard too. Remember covalent bonding between non-metals? Yeah... it exists here too. Inside of a sample of pure metal, there is metal that's SLIGHTLY covalently bonded in a strange way. Electrons are shared between atoms in metal, but it's also mildly ionic in the way it works. Much like how bond angles are affected in compounds containing hydrogen, there are regions of an atom more negative and more positive than others, and metals stick together in such a way. So when the cut is made in a true vacuum, it's somewhat reasonable to think that the new faces are going to be attracted to their own atoms. But we won't assume that. We'll assume a quick cut. No complications. A perfectly smooth sheered cut line across the block with a laser. So insert the same energy to get it back together, you ask? We can do that. It's called laser welding. But on a block? We're not nearly that capable yet. The only chance we have is on a sheet, 1 atom of said material thick, and that's still prone to error because we have no way of observing it.What you're asking is possible. No doubt. But not by an attainable means

Short answer:Although a good RO membrane can remove about 99.9% of Chloride, unless you are using an industrial RO system I would not recommend it as chloride is detrimental to membranes (as Richard Jack correctly stated). Yet al domestic filters come with activated carbon pre-filtration thus the system will still be fit for the task.Long, complete answer:I don’t like people selling stuff on Quora. Even less so selling knowledge (as someone is trying to do below) as it goes against the very purpose of the platform: a free and open space for intellectual exchange. Thus here is my free full explanation of how an RO membrane works. (Text by me, pictures from all over the internet):A semipermeable membrane(or selectively permeable membrane) is a membrane that lets freely pass the solvent (in our case water) while repelling solutes (dissolved substances).Osmosis is a process that describes the tendency of a solvent to move through a semipermeable membrane towards a higher concentration of solute. This means that if we separate a container with a semipermeable membrane, pour water containing a small concentration of solute (e.g. NaCl) on the left hand side (LHS) and water containing a higher concentration of solute on the right hand side (RHS), because of osmosis water will start to flow toward the RHS.The origin of this motion is to be found in the momentum of solute particles; due to Brownian motion dissolved ions near the membrane will randomly find themselves rushing towards the membrane. As they are repelled their momentum is reversed away from the membrane. This momentum is also transferred to water molecules near the membrane which thus start to move away from it. This recalls other water molecules from the far-side of the membrane. Macroscopically the sum of all this momentum transfer creates the water flow from the LHS to the RHS in the example above.This water flow creates a positive pressure on the membrane called osmotic pressure. This is visible in the U-shaped set-up in the pictures as it contradicts the principle of communicating vessels, where we would expect the water level on the LHS and RHS to be equal. However due to osmotic pressure the water level on the RHS will be higher.Osmotic pressure is defined as the amount of pressure necessary to be opposed in order to prevent the passage of solvent through a semipermeable membrane. In such a situation the opposing pressure will push water molecules through the membrane from right to left at the same rate at which the osmotic process recalls molecules from left to right and no apparent motion will be evident macroscopically.Osmotic pressure is directly proportional to the difference in solute concentration at the two sides of the membrane. In case of equal concentration at the two sides there will be no osmotic pressure, as the amount of water molecules recalled across the two sides of the membrane by ionic Brownian motion will be equal and again no macroscopic water movement detectable.Reverse Osmosis is initiated when the applied opposing pressure exceeds osmotic pressure. In this case more water molecules will be pushed through the membrane by the opposing pressure than recalled in the opposite direction by osmosis. The result is that it is possible to use reverse osmosis to create purified water by forcing it through the semipermeable membrane. RO purified water is also called permeate.RO systems will remove virtually all suspended solids and microorganisms and are extremely efficient in removing dissolved ionic compounds, radionuclides and dissolved gasses. The rejection rate of a well maintained and high quality membrane is impressive as illustrated in the table below:Note: even after RO it should not be assumed that water is free from bacteria as these might pass through defective seals or junctions. It is thus not recommendable to use water for human consumption from a contaminated well, even if RO systems are in place.We have seen in the filtration spectrum chart that the size of pores on RO membranes ranges from 1 to 5 nanometers. This allows water to pass freely as the average size of a water molecule is of about 0.2nm. Yet many of the ions that are removed by RO systems are even smaller, for instance the Sodium ion Na+ has a radius of only 0.102nm! It is counterintuitive that a membrane with 5nm pores is able to repel ions of an order of magnitude smaller. The answer lies in the ionic hydration shells.Water molecules closest to a cation will organize all their negative poles toward the cation (vice-versa for an anion) and remain strongly attached to it, forming the inner primary hydration shell. The ordinate structure of this shell creates through hydrogen bonding a somewhat ordered water structure in a second shell, called the outer hydration shell, or cybotactic region. This organization of water molecules around ions is paramount to the functioning of some water treatment systems.The ions with their shells of water molecules can be seen as single units. These reach diameters of several nm and are thus unable to pass through the pores. It is thus the case that charged ions are not even able to get close to the membrane itself. This also explains why rejection rate is never 100%: if the kinetic energy of the hydration shells on the membrane is higher than the force of the hydrogen bonds keeping it together the shell might cleave ejecting the ion to the other side of the membrane. This also explains why RO filters are most efficient at low temperatures.RO systems require an energy input to create the opposing pressure. As osmotic pressure rapidly increases with the increase of solute concentration at the feed side, in order to continue to produce permeate in RO systems it is thus necessary to constantly flush out the water containing high concentrations of solutes at the feed side. This discharge water in RO system is called concentrate.Because of the necessity to constantly eject concentrate not all feed water will be purified for use. The proportion between feed water and usable permeate is defined as the filter’s recovery rate. In very high quality industrial RO units recovery rate can be as high as 80%. For very cheap domestic units this can be as low as 5%, which means that for each liter of purified water created as many as 20 liters of water are wasted down the drain.In nature RO membranes are extremely common, as all cell membranes and cell walls act as selectively permeable membranes. Cells thus let water pass freely, while strictly controlling the amount and type of other ions that can pass the membrane. While being a very efficient system, it subjects the cells to the same osmotic pressure we observe in other RO systems. This means that cells thrive best in when placed in environments where the solution they are immersed in have the same concentration of solute as the cell interior, i.e. in an Isotonic solution. If we place a cell in a watery solution which is has contains more solute, i.e. a Hypertonic solution, (e.g. seawater) water will rush out of the cell, causing it to shrink and become dysfunctional, a process called crenation. If we place the cell in water with fewer solutes, i.e. Hypotonic solution,(e.g. RO water), water will rush into the cell, causing it to swell and eventually rupture in haemolysis.These osmotic movements are the reason why drinking sea water causes dehydration or cucumbers shrink when pickled. For the same cause drinking pure water causes cells in the intestine to swell up and eventually burst, causing diarrhea. As a curiosity it can be remembered that the L.D.50 (the dose that can kill the average human) of pure water is just 3 liters!Under counter reverse osmosis units are arguably the second most popular water treatment system globally. Such systems exploit the RO principle to remove nearly all contaminants from the water.The RO membrane element construction uses a cross flow filtration technique in which only a portion of the water is forced towards the membrane. The most common of such configurations is the spiral wrap.Here a water carrier sheath is enclosed by two RO membranes and attached to a permeable hollow tube. This tube will function as the permeate outlet. After on the outside of the two RO sheets a permeable spacer, called the feed channel spacer, is fixed the whole membrane assembly is tightly wrapped around the hollow tube, which now serves as the core of the filter element. The whole assembly is then enveloped in an impermeable protective sheet and fitted with rubber gaskets. The element is thus placed inside a pressure vessel which allows water to be fed to the channel spacer at high pressure. The water that permeates through the membrane is thus channeled in the permeate outlet (connected to the faucet), while the rejected reminder directly flows through the feeding channel and is diverted to the concentrate outlet(connected to the drain).As water has to be fed through the assembly at relatively high pressures (>5bar) most domestic RO systems dispose of a feeding booster pump. Despite this, water permeates at a very slow rate (typically <1l/min) and must thus be collected in a storage vessel. This acts as a buffer, allowing the system to slowly refill it, yet allowing the user to retrieve water at acceptable rates. In order to avoid clogging of the feeding channel one or more cartridge pre-filtration stages are required.To give permeate a more pleasant taste (permeate has no taste, thus by drinking it the user tastes its own mount!) a re-mineralization or AC cartridge is installed before the faucet.To avoid too disastrous recovery rates a flow restriction tube limits the concentrate rejection rate, allowing increasing the recovery rate and the working pressure of the membrane. This must be bypassed during the periodic membrane washing cycle.Industrial RO systems generally have to guarantee very high removal rates. This is generally achieved by a double pass RO design, where the permeate of the first membranes become the feed for a successive RO stage. Such designs require high pressures and have reduced flow rates, which makes them to energy sinks unsuitable for domestic usage.

Lets start with JEE MAINS.What you need to know about JEE Main 2020 before you startJEE Main 2020 will be held twice - January and April.National Testing Agency is the conducting body for the computer based testAdmissions to NITs, IIITs, GFTIs and other universities are through JEE Main.The application process is online and the test is held in multiple sessions across the country.About 12 lakh students appear for MAINS every year.How to prepare for JEE Main 2020 - stages of preparationKnow your JEE Main 2020 syllabusUnderstand the exam pattern of JEE MainMake the JEE Main 2020 preparation planBooks to referPractice till you are perfect using mock tests and previous year papersExam Day StrategyStart with the Syllabus - Know which topics to studyTo crack JEE Main, one needs to be well versed in Physics, Chemistry and Mathematics of class 11 and 12. NTA elaborates the syllabus to study from. This allows students to know what to prepare before how to prepare for JEE Main 2020.Segregate the JEE Main SyllabusOne step is to segregate the topics in each subject into class 11 and class 12 to allow for common preparation for both board and entrance exams. Second, the topics from the JEE MAINS Syllabus must be divided into easy, tough and very tough so that the how to prepare for JEE Main plan is made accordingly.JEE Main Syllabus - Important Topics with weightageWhile studying the complete syllabus is important, it is also a wise strategy to give importance to those topics that carry weightage in JEE Main. An analysis of the past 20 years of the papers of JEE Main and AIEEE show the following topics are important. The respective weightage of the same is given below. Make sure to incorporate this in your how to prepare for JEE Main plan.JEE Main 2020 Physics Topics with WeightagePhysics and Measurement carries 4% weightageWork Energy and Power has 3% weightageRotational Motion carries 3% weightageProperties of Solids and Liquids have 5% weightageKinetic theory of Gases carries 3% weightageElectromagnetic Induction and Alternating currents have 3% weightageExperimental skills carry 3% weightageKinematics has 3% weightageLaws of motion carries 3% weightageGravitation has 2% weightageThermodynamics carries 9% weightageOscillations and Waves have 3% weightageElectrostatics carries 9% weightageCurrent Electricity has 8% weightageMagnetic Effects of Current and Magnetism carries 5% weightageElectromagnetic Waves has 5% weightageOptics carries 10% weightageDual Nature of Matter and Radiation has 6% weightageAtoms and Nuclei carries 3% weightageElectronic devices have 14% weightageCommunication Systems carry 5% weightageJEE Main 2020 Maths Topics with WeightageSets, Relations and Functions has 5% weightageComplex numbers and quadratic equations carries 7% weightageMatrices and Determinants has 7% weightagePermutations and combinations carries 4% weightageBinomial theorem and its simple applications has 2% weightageSequence and series carries 5% weightageIntegral Calculus has 9% weightageLimit, continuity and differentiability carries 10% weightageCo-ordinate geometry has 15% weightageThree Dimensional Geometry carries 6% weightageVector Algebra has 5% weightageStatistics and Probability carries 8% weightageTrigonometry has 4% weightageMathematical reasoning carries 3% weightageDifferential equations have 3% weightageMathematical Induction carries 3% weightageJEE Main 2020 Chemistry Topics with WeightageSome basic concepts in chemistry carries 5% weightageStates of matter has 3% weightageAtomic Structure carries 3% weightageSolutions have 5% weightageChemical Thermodynamics carries 4% weightageEquilibrium has 6% weightageRedox Reaction and Electrochemistry carries 4% weightageChemical kinetics has 3% weightageSurface Chemistry carries 1% weightageGeneral Principle and process of Isolation of metals has 2% weightageClassification of Elements and Periodic table carries 3% weightageHydrogen has 3% weightagep- Block Elements carries 5% weightageS - Block Elements Alkali and Alkaline Earth Metals has 1% weightageChemical Bonding and Molecular Structure carries 5%d - and f - BLOCK ELEMENTS has 4% weightageCo-ordination Compounds carries 4% weightageEnvironmental Chemistry has 3% weightagePurification and Characterisation of Organic Compounds carries 3% weightageSome Basic Principles of Organic Chemistry has 3% weightageHydrocarbons carries 3% weightageOrganic Compounds containing Halogens has 2% weightageOrganic Compounds containing Oxygen carries 6% weightageOrganic Compounds Containing Nitrogen has 1% weightagePolymers carries 3% weightageBiomolecules has 3% weightageChemistry in Everyday Life carries 4% weightagePrinciples Related to Practical has Chemistry 3% weightageSome guidelines while making the JEE Main 2020 Preparation PlanGive equal weightage to all topicsDistribute the time needed to study it. Give more time to difficult topics and less to the ones you just need to revise.Ensure you have scheduled revision time in the planAction Plan for How to Prepare for JEE Main 2020Study a chapter and understand the concepts. NCERT books are good for this.While studying, make sure to note important points and formulas. This short notes will be useful during revision.After studying a chapter or topic, check how much you can recollect and to what extent you have understood the topic.Then practice questions based on the topic studied. While practising do not go for the solution directly. Try to solve yourself, make mistakes and then correct it. This step will help you to crack JEE Main.Make sure to give a mock test after completing the subject. Similarly ensure that you appear for as many mock tests as you can so that you can analyse your preparation levels, understand where you are making the mistakesUse the analysis to know your weak areas and concentrate on improving while revising.Be wise and Revise - Without revision, it is difficult to crack any exam especially one like JEE Main. You can only improve if you revise.Clear all your concepts, doubts. Never leave a question unanswered in your mind.Put the brake and take a break - While studying is good, it's not wise to do it continuously. So take some time off to refresh your mind before you start again. You can listen to music, play games or do what eases your brain. Physical exercise for half an hour or an hour helps in boosting the memory. Eat right.Best books for JEE Main 2020While NCERT books are good to cement your base, its advisable to move to specialized books on JEE Main. Over the years some of the reference books have become popular on account of the tips given in them, practice exercises that are given at the end of the chapter and the indepth knowledge that is necessary to crack JEE Main 2020. Your preparation would be complete by referring to the table given below.These are the books that are perfect to refer for IIT JEE also which includes both JEE Main and JEE Advanced. SOme of the books that can be used for JEE Main preparation areFor JEE ADVANCEDIn order to chalk-out a plan for JEE-Advanced preparation, it is crucial to have information about what all topics are covered in this examination. So, we start off with the syllabus...PHYSICSGeneral: Units and dimensions, dimensional analysis; least-count, significant figures; Methods of measurement and error analysis for physical quantities pertaining to the following experiments: Experiments based on using Vernier calipers and screw gauge (micrometer), Determination of g using simple pendulum, Young’s modulus by Searle’s method, Specific heat of a liquid using calorimeter, focal length of a concave mirror and a convex lens using u-v method, Speed of sound using resonance column, Verification of Ohm’s law using voltmeter and ammeter, and specific resistance of the material of a wire using meter bridge and post office box.Mechanics: Kinematics in one and two dimensions (Cartesian coordinates only), projectiles; Uniform circular motion; Relative velocity. Newton’s laws of motion; Inertial and uniformly accelerated frames of reference; Static and dynamic friction; Kinetic and potential energy; Work and power; Conservation of linear momentum and mechanical energy. Systems of particles; Centre of mass and its motion; Impulse; Elastic and inelastic collisions. Law of gravitation; Gravitational potential and field; Acceleration due to gravity; Motion of planets and satellites in circular orbits; Escape velocity. Rigid body, moment of inertia, parallel and perpendicular axes theorems, moment of inertia of uniform bodies with simple geometrical shapes; Angular momentum; Torque; Conservation of angular momentum; Dynamics of rigid bodies with fixed axis of rotation; Rolling without slipping of rings, cylinders and spheres; Equilibrium of rigid bodies; Collision of point masses with rigid bodies. Linear and angular simple harmonic motions. Hooke’s law, Young’s modulus. Pressure in a fluid; Pascal’s law; Buoyancy; Surface energy and surface tension, capillary rise; Viscosity (Poiseuille’s equation excluded), Stoke’s law; Terminal velocity, Streamline flow, equation of continuity, Bernoulli’s theorem and its applications. Wave motion (plane waves only), longitudinal and transverse waves, superposition of waves; Progressive and stationary waves; Vibration of strings and air columns; Resonance; Beats; Speed of sound in gases; Doppler effect (in sound).Thermal physics: Thermal expansion of solids, liquids and gases; Calorimetry, latent heat; Heat conduction in one dimension; Elementary concepts of convection and radiation; Newton’s law of cooling; Ideal gas laws; Specific heats (Cv and Cp for monoatomic and diatomic gases); Isothermal and adiabatic processes, bulk modulus of gases; Equivalence of heat and work; First law of thermodynamics and its applications (only for ideal gases); Blackbody radiation: absorptive and emissive powers; Kirchhoff’s law; Wien’s displacement law, Stefan’s law.Electricity and magnetism: Coulomb’s law; Electric field and potential; Electrical potential energy of a system of point charges and of electrical dipoles in a uniform electrostatic field; Electric field lines; Flux of electric field; Gauss’s law and its application in simple cases, such as, to find field due to infinitely long straight wire, uniformly charged infinite plane sheet and uniformly charged thin spherical shell. Capacitance; Parallel plate capacitor with and without dielectrics; Capacitors in series and parallel; Energy stored in a capacitor. Electric current; Ohm’s law; Series and parallel arrangements of resistances and cells; Kirchhoff’s laws and simple applications; Heating effect of current. Biot–Savart’s law and Ampere’s law; Magnetic field near a current-carrying straight wire, along the axis of a circular coil and inside a long straight solenoid; Force on a moving charge and on a current-carrying wire in a uniform magnetic field. Magnetic moment of a current loop; Effect of a uniform magnetic field on a current loop; Moving coil galvanometer, voltmeter, ammeter and their conversions. Electromagnetic induction: Faraday’s law, Lenz’s law; Self and mutual inductance; RC, LR and LC circuits with d.c. and a.c. sources.Optics: Rectilinear propagation of light; Reflection and refraction at plane and spherical surfaces; Total internal reflection; Deviation and dispersion of light by a prism; Thin lenses; Combinations of mirrors and thin lenses; Magnification. Wave nature of light: Huygen’s principle, interference limited to Young’s double-slit experiment.Modern physics: Atomic nucleus; α, β and _ radiations; Law of radioactive decay; Decay constant; Half-life and mean life; Binding energy and its calculation; Fission and fusion processes; Energy calculation in these processes. Photoelectric effect; Bohr’s theory of hydrogen-like atoms; Characteristic and continuous Xrays, Moseley’s law; de Broglie wavelength of matter waves.CHEMISTRYPhysical Chemistry: General topics- Concept of atoms and molecules; Dalton’s atomic theory; Mole concept; Chemical formulae; Balanced chemical equations; Calculations (based on mole concept) involving common oxidation-reduction, neutralisation, and displacement reactions; Concentration in terms of mole fraction, molarity, molality and normality. Gaseous and liquid states: Absolute scale of temperature, ideal gas equation; Deviation from ideality, van der Waals equation; Kinetic theory of gases, average, root mean square and most probable velocities and their relation with temperature; Law of partial pressures; Vapour pressure; Diffusion of gases. Atomic structure and chemical bonding: Bohr model, spectrum of hydrogen atom, quantum numbers; Wave-particle duality, de Broglie hypothesis; Uncertainty principle; Qualitative quantum mechanical picture of hydrogen atom, shapes of s, p and d orbitals; Electronic configurations of elements (up to atomic number 36); Aufbau principle; Pauli’s exclusion principle and Hund’s rule; Orbital overlap and covalent bond; Hybridisation involving s, p and d orbitals only; Orbital energy diagrams for homonuclear diatomic species; Hydrogen bond; Polarity in molecules, dipole moment (qualitative aspects only); VSEPR model and shapes of molecules (linear, angular, triangular, square planar, pyramidal, square pyramidal, trigonal bipyramidal, tetrahedral and octahedral). Energetics: First law of thermodynamics; Internal energy, work and heat, pressure-volume work; Enthalpy, Hess’s law; Heat of reaction, fusion and vapourization; Second law of thermodynamics; Entropy; Free energy; Criterion of spontaneity. Chemical equilibrium: Law of mass action; Equilibrium constant, Le Chatelier’s principle (effect of concentration, temperature and pressure); Significance of ΔG and ΔG° in chemical equilibrium; Solubility product, common ion effect, pH and buffer solutions; Acids and bases (Bronsted and Lewis concepts); Hydrolysis of salts. Electrochemistry: Electrochemical cells and cell reactions; Standard electrode potentials; Nernst equation and its relation to ΔG; Electrochemical series, emf of galvanic cells; Faraday’s laws of electrolysis; Electrolytic conductance, specific, equivalent and molar conductivity, Kohlrausch’s law; Concentration cells. Chemical kinetics: Rates of chemical reactions; Order of reactions; Rate constant; First order reactions; Temperature dependence of rate constant (Arrhenius equation). Solid state: Classification of solids, crystalline state, seven crystal systems (cell parameters a, b, c, α, β, γ), close packed structure of solids (cubic), packing in fcc, bcc and hcp lattices; Nearest neighbours, ionic radii, simple ionic compounds, point defects. Solutions: Raoult’s law; Molecular weight determination from lowering of vapour pressure, elevation of boiling point and depression of freezing point. Surface chemistry: Elementary concepts of adsorption (excluding adsorption isotherms); Colloids: types, methods of preparation and general properties; Elementary ideas of emulsions, surfactants and micelles (only definitions and examples). Nuclear chemistry: Radioactivity: isotopes and isobars; Properties of α, β and γ rays; Kinetics of radioactive decay (decay series excluded), carbon dating; Stability of nuclei with respect to proton-neutron ratio; Brief discussion on fission and fusion reactions.Inorganic Chemistry: Isolation/preparation and properties of the following non-metals: Boron, silicon, nitrogen, phosphorus, oxygen, sulphur and halogens; Properties of allotropes of carbon (only diamond and graphite), phosphorus and sulphur. Preparation and properties of the following compounds: Oxides, peroxides, hydroxides, carbonates, bicarbonates, chlorides and sulphates of sodium, potassium, magnesium and calcium; Boron: diborane, boric acid and borax; Aluminium: alumina, aluminium chloride and alums; Carbon: oxides and oxyacid (carbonic acid); Silicon: silicones, silicates and silicon carbide; Nitrogen: oxides, oxyacids and ammonia; Phosphorus: oxides, oxyacids (phosphorus acid, phosphoric acid) and phosphine; Oxygen: ozone and hydrogen peroxide; Sulphur: hydrogen sulphide, oxides, sulphurous acid, sulphuric acid and sodium thiosulphate; Halogens: hydrohalic acids, oxides and oxyacids of chlorine, bleaching powder; Xenon fluorides. Transition elements (3d series): Definition, general characteristics, oxidation states and their stabilities, colour (excluding the details of electronic transitions) and calculation of spin-only magnetic moment; Coordination compounds: nomenclature of mononuclear coordination compounds, cis-trans and ionisation isomerisms, hybridization and geometries of mononuclear coordination compounds (linear, tetrahedral, square planar and octahedral). Preparation and properties of the following compounds: Oxides and chlorides of tin and lead; Oxides, chlorides and sulphates ; Potassium permanganate, potassium dichromate, silver oxide, silver nitrate, silver thiosulphate. Ores and minerals: Commonly occurring ores and minerals of iron, copper, tin, lead, magnesium, aluminium, zinc and silver. Extractive metallurgy: Chemical principles and reactions only (industrial details excluded); Carbon reduction method (iron and tin); Self reduction method (copper and lead); Electrolytic reduction method (magnesium and aluminium); Cyanide process (silver and gold). Principles of qualitative analysis: Groups I to V ; Nitrate, halides (excluding fluoride), sulphate and sulphide.Organic Chemistry: Concepts- Hybridisation of carbon; Sigma and pi-bonds; Shapes of simple organic molecules; Structural and geometrical isomerism; Optical isomerism of compounds containing up to two asymmetric centres, (R,S and E,Z nomenclature excluded); IUPAC nomenclature of simple organic compounds (only hydrocarbons, mono-functional and bi-functional compounds); Conformations of ethane and butane (Newman projections); Resonance and hyperconjugation; Keto-enol tautomerism; Determination of empirical and molecular formulae of simple compounds (only combustion method); Hydrogen bonds: definition and their effects on physical properties of alcohols and carboxylic acids; Inductive and resonance effects on acidity and basicity of organic acids and bases; Polarity and inductive effects in alkyl halides; Reactive intermediates produced during homolytic and heterolytic bond cleavage; Formation, structure and stability of carbocations, carbanions and free radicals. Preparation, properties and reactions of alkanes: Homologous series, physical properties of alkanes (melting points, boiling points and density); Combustion and halogenation of alkanes; Preparation of alkanes by Wurtz reaction and decarboxylation reactions. Preparation, properties and reactions of alkenes and alkynes: Physical properties of alkenes and alkynes (boiling points, density and dipole moments); Acidity of alkynes; Acid catalysed hydration of alkenes and alkynes (excluding the stereochemistry of addition and elimination); Reactions of alkenes with KMnO4 and ozone; Reduction of alkenes and alkynes; Preparation of alkenes and alkynes by elimination reactions; Electrophilic addition reactions of alkenes with X2, HX, HOX (X=halogen) and H2O; Addition reactions of alkynes; Metal acetylides. Reactions of benzene: Structure and aromaticity; Electrophilic substitution reactions: halogenation, nitration, sulphonation, Friedel-Crafts alkylation and acylation; Effect of o-, m- and p-directing groups in monosubstituted benzenes. Phenols: Acidity, electrophilic substitution reactions (halogenation, nitration and sulphonation); Reimer-Tieman reaction, Kolbe reaction. Characteristic reactions of the following (including those mentioned above): Alkyl halides: rearrangement reactions of alkyl carbocation, Grignard reactions, nucleophilic substitution reactions; Alcohols: esterification, dehydration and oxidation, reaction with sodium, phosphorus halides, ZnCl2/concentrated HCl, conversion of alcohols into aldehydes and ketones; Ethers:Preparation by Williamson’s Synthesis; Aldehydes and Ketones: oxidation, reduction, oxime and hydrazone formation; aldol condensation, Perkin reaction; Cannizzaro reaction; haloform reaction and nucleophilic addition reactions (Grignard addition); Carboxylic acids: formation of esters, acid chlorides and amides, ester hydrolysis; Amines: basicity of substituted anilines and aliphatic amines, preparation from nitro compounds, reaction with nitrous acid, azo coupling reaction of diazonium salts of aromatic amines, Sandmeyer and related reactions of diazonium salts; carbylamine reaction; Haloarenes: nucleophilic aromatic substitution in haloarenes and substituted haloarenes (excluding Benzyne mechanism and Cine substitution). Carbohydrates: Classification; mono- and di-saccharides (glucose and sucrose); Oxidation, reduction, glycoside formation and hydrolysis of sucrose. Amino acids and peptides: General structure (only primary structure for peptides) and physical properties. Properties and uses of some important polymers: Natural rubber, cellulose, nylon, teflon and PVC. Practical organic chemistry: Detection of elements (N, S, halogens); Detection and identification of the following functional groups: hydroxyl (alcoholic and phenolic), carbonyl (aldehyde and ketone), carboxyl, amino and nitro; Chemical methods of separation of mono-functional organic compounds from binary mixtures.MATHEMATICSAlgebra-Algebra of complex numbers, addition, multiplication, conjugation, polar representation, properties of modulus and principal argument, triangle inequality, cube roots of unity, geometric interpretations. Quadratic equations with real coefficients, relations between roots and coefficients, formation of quadratic equations with given roots, symmetric functions of roots. Arithmetic, geometric and harmonic progressions, arithmetic, geometric and harmonic means, sums of finite arithmetic and geometric progressions, infinite geometric series, sums of squares and cubes of the first n natural numbers. Logarithms and their properties. Permutations and combinations, Binomial theorem for a positive integral index, properties of binomial coefficients. Matrices as a rectangular array of real numbers, equality of matrices, addition, multiplication by a scalar and product of matrices, transpose of a matrix, determinant of a square matrix of order up to three, inverse of a square matrix of order up to three, properties of these matrix operations, diagonal, symmetric and skew-symmetric matrices and their properties, solutions of simultaneous linear equations in two or three variables. Addition and multiplication rules of probability, conditional probability, Bayes Theorem, independence of events, computation of probability of events using permutations and combinations.Trigonometry-Trigonometric functions, their periodicity and graphs, addition and subtraction formulae, formulae involving multiple and sub-multiple angles, general solution of trigonometric equations. Relations between sides and angles of a triangle, sine rule, cosine rule, half-angle formula and the area of a triangle, inverse trigonometric functions (principal value only).Analytical geometry- Two dimensions: Cartesian coordinates, distance between two points, section formulae, shift of origin. Equation of a straight line in various forms, angle between two lines, distance of a point from a line; Lines through the point of intersection of two given lines, equation of the bisector of the angle between two lines, concurrency of lines; Centroid, orthocentre, incentre and circumcentre of a triangle. Equation of a circle in various forms, equations of tangent, normal and chord. Parametric equations of a circle, intersection of a circle with a straight line or a circle, equation of a circle through the points of intersection of two circles and those of a circle and a straight line. Equations of a parabola, ellipse and hyperbola in standard form, their foci, directrices and eccentricity, parametric equations, equations of tangent and normal.Locus Problems- Three dimensions: Direction cosines and direction ratios, equation of a straight line in space, equation of a plane, distance of a point from a plane.Differential calculus- Real valued functions of a real variable, into, onto and one-to-one functions, sum, difference, product and quotient of two functions, composite functions, absolute value, polynomial, rational, trigonometric, exponential and logarithmic functions. Limit and continuity of a function, limit and continuity of the sum, difference, product and quotient of two functions, L’Hospital rule of evaluation of limits of functions. Even and odd functions, inverse of a function, continuity of composite functions, intermediate value property of continuous functions. Derivative of a function, derivative of the sum, difference, product and quotient of two functions, chain rule, derivatives of polynomial, rational, trigonometric, inverse trigonometric, exponential and logarithmic functions. Derivatives of implicit functions, derivatives up to order two, geometrical interpretation of the derivative, tangents and normals, increasing and decreasing functions, maximum and minimum values of a function, Rolle’s Theorem and Lagrange’s Mean Value Theorem.Integral calculus- Integration as the inverse process of differentiation, indefinite integrals of standard functions, definite integrals and their properties, Fundamental Theorem of Integral Calculus. Integration by parts, integration by the methods of substitution and partial fractions, application of definite integrals to the determination of areas involving simple curves. Formation of ordinary differential equations, solution of homogeneous differential equations, separation of variables method, linear first order differential equations.Vectors- Addition of vectors, scalar multiplication, dot and cross products, scalar triple products and their geometrical interpretations.Phew! That was a quite a detailed syllabus...On the basis of this syllabus division, below given is a list of books to help you out. Most students generally use them for their JEE-Advanced preparations. It is not necessary for you to purchase all of them; rather you must go with the syllabus and select the books that suit you the most.Physics· H.C. Verma – Concepts of Physics, Volume I and II· D.C. Pandey – Complete set of books· I.E. Irodov – Problems in General PhysicsChemistry· O.P. Tandon – Organic Chemistry, Inorganic Chemistry· R.C. Mukherjee – Physical Chemistry· R.K. Gupta – Organic Chemistry· NCERT Textbooks – Inorganic Chemistry· P. Bahadur – Physical ChemistryMathematics· Arihant Publications – Amit Agarwal – All Sets· S.L. Loney – Plane Coordinate Geometry· Tata McGraw Hill’s Publication – A Course in Mathematics for JEE Advanced· Cengage Publications – Complete set of books for JEE Advanced Mathematics(https://www.toppr.com/bytes/jee-...)You must also solve the previous years’ papers as it would help you in getting an idea about the type of questions asked in exams. You should look for good online websites (https://www.toppr.com/exams/jee-...) that provide accurate information about the subject-specific study materials and practice papers. Bear in mind that NCERT textbooks are a must since they form the baseline of questions asked in most of the entrance exams including JEE Advanced.Now, coming to the most crucial part... HOW TO PREPARE FOR THIS EXAMINATION??You have the syllabus and the books; all you need is a proper routine:In my opinion, there cannot be a universal daily routine that leads to success in JEE-Advanced as it all depends from person to person. For some people studying only 4-5 hours per day is sufficient but for others 12-14 hours of study does the trick. There have been some students who mentioned that they were not much into recreation during their preparation period and there have been others who think that recreation is important as it replenishes their energy. Also, the daily routines can range from 4 months (https://www.toppr.com/bytes/jee-...) to 1-2 years (https://www.toppr.com/bytes/jee-... and https://www.toppr.com/bytes/prep...).Many students who prepare for their Boards and JEE at the same time have to attend 6-7 hours of school every-day. Apart from this, there are coaching classes every-day or on alternate days. However, there are others who prepare for JEE after their Borads. You should make your study-plan based on the category you belong to. There is an emphasis on about 6-8 hours of self-study daily. Ideally, one should for a 15-20 minute break between every 2 hours of study. This helps in tackling the monotonous nature of studies. A small break in between maximizes the brain’s absorptive capacity which would drastically reduce in case of continuous studies. This break differs from person to person and ranges from talking to a friend to going for a short-walk or listening to songs, etc. Further, the study hours should be divided between revising the previous topics and learning the new ones. Some people revise in the late hours of night while the others do it in wee hours of the morning. Same is applicable to learning new concepts. Also, time should be divided between different subjects for each day, week and month. This subject division continues till the last week of exam with certain subjects being preferred over the others at specific times. Solving the practice papers regularly (daily or monthly, subject-wise or topic-wise, etc.) is crucial but differs between individuals according to their schedule. 7-8 hours of sleep daily is an absolute must. Talking to teachers and friends for proper guidance is good as it always helps to have discussions. The most important part is being optimistic, focused, consistent, sincere and smart throughout your routine.Always remember, if you approach a task with a mind-set that it will be very difficult, you will have a lot of hardships in completing it. Approach it with a mind-set that it can definitely be done with proper planning- Voila! It will become a lot easier to handle. I have tried it... give it a go and you yourself will feel the difference.*BITSAT*For BITSAT, I would go with Amit Kumar and advice you to practice from ‘A complete success package for online BITSAT- by arihant publications’.Hope it helps!How do I prepare for JEE Advanced starting now?For solutions, you can check out DOUBTNUTDoubtnut App is World’s Biggest Platform for Free Video solution of Math Doubts with over 1 Lakh+ Video Solution of Math Questions. Doubtnut is on-demand Q&A app for Math for Students (up to JEE Advanced level), Where you can ask unlimited Math Question Just by clicking a Picture of Doubt on Doubtnut App and get an awesome video solution Instantly. Doubtnut is founded by IITians. Doubtnut Highlights – 1. World’s Biggest Platform for Video Solution of Maths 2. Solution of 1 lakh+ Math Questions from Various Books like R D Sharma, R S Aggarwal, Cengage and Arihant Publication Books and Previous year Papers Solution of Boards, JEE Mains & Advanced. 4. Only App where you can get Video solution just by clicking a Picture of Math Doubt. 5. Over 1.5 Lakh+ Students ask their Math Doubts Daily on Doubtnut app. 6. 6 Million+ Views on Doubtnut Youtube Channel 7. CBSE, ICSE, State Boards, NTSE and IIT JEE Mains & Advanced Preparation Covered 8. Best Math Experts Are EngagedThey soon will be releasing the solutions and matterials for Physics and Chemistry as well. Only #3 DAYS TO GO FOR THIS TO HAPPEN