NEET 2020

CHEMISTRY

Admission for Online Chemistry classes for NEET 2020

Are you looking for Chemistry classes online for  NEET 2020? Then Arun’s Classes of Chemistry should be your final destination, if you are looking to enroll for Online chemistry coaching classes in Jaipur for your upcoming National Eligibility-cum-Entrance Test 2020-21. NEET Chemistry Syllabus comprises of topics included in class 11th and 12th Organic, Inorganic and Physical Chemistry. This section is scoring for many students as all the compositions, chemical reactions, chain reactions, mechanisms goes mostly on the basics. Several times, the questions asked in NEET examination are picked directly from the concepts taught in the NCERT textbooks. Also, past few years’ question paper trends suggest that the students are examined in this section by similar kind of questions with a fluctuating difficulty level.

Before starting any preparations, the students are suggested to know all the topics included in NEET Chemistry Syllabus 2020. Preparing the concepts based on NEET question paper analysis is one of the best ways to prepare for NEET Chemistry syllabus. The students find it more comfortable in comparison to Biology and Physics. Given below is the detailed list of all the topics included in NEET Chemistry Syllabus 2020.

Chemistry Syllabus for NEET 2020

Unit 1 – Some basic concepts of Chemistry

General Introduction – Importance and Scope of chemistry

Laws of chemical combination, Dalton’s atomic theory: the concept of elements, atoms and molecules

Atomic and molecular masses. Mole concept and molar mass; percentage composition and empirical and molecular formula; chemical reactions, stoichiometry and calculations based on stoichiometry

Unit 2 – Structure of AtomAtomic number, isotopes and isobars. Concept of shells and subshells, dual nature of matter and light, de Broglie’s relationship, Heisenberg uncertainty principle, concept of orbital, quantum  numbers, shapes of s,p, and d orbitals, rules for filling electrons in orbitals – Aufbau principle, Pauli exclusion principles and Hund’s rule, electronic configuration of atoms, stability of half filled and completely filled orbitals
Unit 3 – Classification of elements and periodicity in propertiesModern periodic law and long term form of periodic table, periodic trends in properties of elements – atomic radii, ionic radii, ionization enthalpy, election gain enthalpy, electronegativity, valence
Unit 4 – Chemical Bonding and molecular structureValence electrons, ionic bond, covalent bond, bond parameters, Lewis structure, polar character of covalent bond, valence bond theory, resonance, geometry of molecules, VSEPR theory, concept of hybridization involving s, p and d orbitals and shapes of some simple molecules, molecular orbital theory of homonuclear diatomic molecules (qualitative idea only) . Hydrogen bond
Unit 5 – States of matter – Gases and Liquids

Three states of matter, intermolecular interactions, types of bonding, melting and boiling points, role of gas of elucidating the concept of molecule, Boyle’s law, Charle’s Law, Gay Lussac’s law, Avogadro’s law, ideal behaviour of gases, empirical derivation of gas equation. Avogadro number, ideal gas equation. Kinetic energy and molecular speeds(elementary idea), deviation from ideal behaviour, liquefaction of gases, critical temperature

Liquid state – Vapour pressure, viscosity and surface tension (qualitative idea only, no mathematical derivations)

Unit 6 – Thermodynamics

First law of thermodynamics – internal energy and enthalpy, heat capacity and specific heat, measurement of U and H, Hess’s law of constant heat summation, enthalpy of: bond dissociation, combustion, formation, atomization, sublimation, phase transition, ionization, solution and dilution

Introduction of entropy as state function, Second law of thermodynamics, Gibbs energy for spontaneous and non-spontaneous process, criteria for equilibrium and spontaneity.

Third law of thermodynamics – Brief introduction

Unit 7 – EqullibriumEquilibrium in Physical and chemical processes, dynamic nature of equilibrium, law of chemical equilibrium, equilibrium constant, factors affecting equilibrium Le Chatelier’s principle, ionic equilibrium – ionization of acids and bases, strong and weak electrolytes, degree of ionization, ionization of polybasic acids, acid strength, concept of pH., Hydrolysis of salts(elementary idea), buffer solutions, Henderson equation, solubility product, common ion effect (with illustrative examples)
Unit 8 – Redox reactionsConcept of oxidation and oxidation and reduction, redox reactions oxidation number, balancing redox reactions in terms of loss and gain of electron and change in oxidation numbers
Unit 9 – HydrogenOccurrence, isotopes, preparation, properties and uses of hydrogen, hydrides-ionic, covalent and interstitial; physical and chemical properties of water, heavy water; hydrogen peroxide-preparation, reactions, uses and structure
Unit 10 – s-Block elements(Alkali and alkaline earth metals)

Group 1 and group 2 elements:

General introduction, electronic configuration, occurrence, anomalous properties of the first element of each group, diagonal relationship, trends in the chemical reactivity with oxygen, water, hydrogen and halogens, uses

Preparation and properties of some important compounds

Sodium carbonate, sodium chloride, sodium hydroxide and sodium hydrogen carbonate, biological importance of sodium and potassium

Industrial use of lime and limestone, biological importance of Mg and Ca

Unit 11 – Some p-block elements

General introduction to p-Block elements

Group 13 elements: General introduction, electronic configuration, occurrence, variation of properties, oxidation states, trends in chemical reactivity, anomalous properties of first element of the group, Boron, some important compounds: borax, boric acids, boron hydrides. Aluminium: uses, reactions with acids and alkalies

General 14 elements: General introduction, electronic configuration, occurrence, variation of properties, oxidation of states, trends in chemical reactivity, anomalous behaviour of first element. Carbon, allotropic forms, physical and chemical properties: uses of some important compounds: oxides

Important compounds of silicon and a few uses: silicon tetrachloride, silicones, silicates and zeolites, their uses

Unit 12 – Organic Chemistry- Some Basic Principles and Techniques

General introduction, methods of purification qualitative and quantitative analysis

Classification and IUPAC nomenclature of organic compounds

Electronic displacements in a covalent bond: inductive effect, electromeric effect, resonance and hyperconjugation

Homolytic and heterolytic fission of a covalent bond: free radials, carbocations, carbanions; electrophiles and nucleophiles, types of organic reactions

Unit 13 – Hydrocarbons

Alkanes – Nomenclature, isomerism, conformations (ethane only), physical properties, chemical reactions including free radical mechanism of halogenation, combustion and pyrolysis

Alkenes – Nomenclature, structure of double bond(ethene), geometrical isomerism, physical properties, methods of preparation: chemical reactions: addition of hydrogen, halogen, water, hydrogen halides (Markovnikov’s addition and peroxide effect), ozonolysis, oxidation, mechanism of electrophilic addition

Alkynes – Nomenclature, structure of triple bond (ethyne), physical properties, methods of preparation, chemical reactions:acidic character of alkynes, addition reaction of – hydrogen, halogens, hydrogen halides and water

Aromatic hydrocarbons – introduction, IUPAC nomenclature, Benzene; resonance, aromaticity, chemical properties: mechanism of electrophilic substitution – Nitration sulphonation, halogenation, Friedel Craft’s alkylation and acylation, directive influence of functional group in mono-substituted benzene; carcinogenicity and toxicity

Unit 14 – Environmental ChemistryEnvironmental pollution – Air, water and soil pollution, chemical reactions in atmosphere, smogs, major atmospheric pollutants; acid rain ozone and its reactions, effects of depletion of ozone layer, green house effect and global warming- pollution due to industrial wastes; green chemistry as an alternative tool for reducing pollution, strategy for control of environmental pollution
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