NEET Chemistry 2020 – Important Topics,Syllabus and Preparation Tips and Study Materials

NEET Chemistry is divided into three sections, namely, Physical, Organic and Inorganic Chemistry. In comparison to Physics and Biology, Chemistry is the most scoring section. If prepared thoroughly, chemistry can help students to secure a meritorious position in the exam. Out of total 720 marks (180 questions), NEET Chemistry comprises 180 marks (45 Questions). Therefore, it is essential for students to prepare well for the Chemistry section.

In NEET Chemistry section, around 36% of weightage is given to Physical and Inorganic Chemistry while 28% of weightage is given to Organic Chemistry Syllabus. In order to enhance your chemistry preparation, it’s crucial to have thorough planning considering all your strengths, weaknesses and time availability for exam preparation.

NEET Chemistry Important Topics

Based on the last few years of question paper analysis, we have figured out the most important topics of Chemistry from where the questions are generally asked.

Organic ChemistryInorganic ChemistryPhysical Chemistry
AminesD Block ElementsAtomic Structure
Organic Compounds Containing OxygenClassification of Elements & PeriodicityMole Concept & Stoichiometry
Environmental ChemistryChemical Bonding and Molecular StructureRedox Reactions & Electrochemistry
Basic Principles of Organic ChemistryCoordination CompoundsThermochemistry & Thermodynamics
BiomoleculesP Block ElementsEquilibrium
Hydrocarbons and their substituentsPractical ChemistrySurface Chemistry
PolymersHydrogen and S Block ElementsNuclear Chemistry & Chemical Kinetics
F Block ElementsStates of Matter & Solutions

NEET Physical Chemistry

It’s the numerical section of NEET Chemistry. Understanding the concepts is crucial for Physical Chemistry. It’s difficult to interpret a numerical without understanding the related concepts. Students are advised to have a strong grip on all the concepts taught in NCERT textbooks. Also, maintain a list of important formulas and practice questions regularly. From this section, the probability of getting theory-based questions is quite less. However, with regular practice, you can score good marks from this section.

Organic Chemistry for NEET

Students are advised to understand and memorize all the equations, formulae, and reactions given in NCERT textbooks. Memorize the names of various compounds that constitute reagents, subtracts, etc. To gain command over this subject practice variety of questions from reference books as well.

Inorganic Chemistry for NEET

It is the easiest section of NEET Chemistry. Most of the students complete this section in very less time as numerical and formula-based questions are not asked in this section. The students are advised to understand the basic concepts taught in NCERT textbooks thoroughly.

NEET Chemistry Syllabus

Class 11

Class 12

Unit

Topic / Chapters

Unit

Topic / Chapters

I

Basic Concepts of Chemistry

  • Laws of chemical combination, Dalton’s atomic theory: 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.

I

Solid State

Classification of solids based on different binding forces; molecular, ionic covalent and metallic solids, amorphous and crystalline solids (elementary idea), unit cell in two dimensional and three dimensional lattices, calculation of density of unit cell, packing in solids, packing efficiency, voids, number of atoms per unit cell in a cubic unit cell, point defects, electrical and magnetic properties, Band theory of metals, conductors, semiconductors and insulators.

II

Structure of Atom

Atomic 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.

 

II

Solutions

Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids, solid solutions, colligative properties- relative lowering of vapour pressure, Raoult’s law, elevation of boiling point, depression of freezing point,osmotic pressure, determination of molecular masses using colligative properties abnormal molecular mass. Van Hoff factor.

III

Classification of Elements & Periodicity in Properties

Modern periodic law and long form of periodic table, periodic trends in properties of elements- atomic radii, ionic radii, ionization enthalpy, electron gain enthalpy, electronegativity, valence.

III

Electrochemistry

Redox reactions, conductance in electrolytic solutions, specific and molar conductivity variation of conductivity with concentration, kohlrausch’s Law, electrolysis and Laws of electrolysis (elementary idea), dry cell- electrolytic cells and Galvanic cells; lead accumulator, EMF of a cell, standard electrode potential, Relation between Gibbs energy change and EMF of a cell, fuel cells; corrosion.

IV

Chemical Bonding and Molecular Structure

Valence 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.

IV

Chemical Kinetics

Rate of a reaction (average and instantaneous), factors affecting rates of reaction; concentration, temperature, catalyst; order and molecularity of a reaction; rate law and specific rate constant, integrated rate equations and half life (only for zero and first order reactions); concept of collision theory ( elementary idea, no mathematical treatment). Activation energy, Arrhenious equation..

V

States of Matter: Gases and Liquids

  • Three states of matter, intermolecular interactions, types of bonding, melting and boiling points, role of gas laws of elucidating the concept of the 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).

V

Surface Chemistry

  • Adsorption-physisorption and chemisorption; factors affecting adsorption of gases on solids, catalysis homogeneous and heterogeneous, activity and selectivity: enzyme catalysis; colloidal state: distinction between true solutions, colloids and suspensions; lyophillic, lyophobic multimolecular and macromolecular colloids; properties of colloids; Tyndall effect, Brownian movement, electrophoresis, coagulation; emulsions- types of emulsions.
 

VI

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 change for spontaneous and non-spontaneous process, criteria for equilibrium and spontaneity.
  • Third law of thermodynamics- Brief introduction.

VI

Isolation of Elements

Principles and methods of extraction- concentration, oxidation, reduction electrolytic method and refining; occurrence and principles of extraction of aluminium, copper, zinc and iron.

VII

Equilibrium

Equilibrium 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).

VII

p-Block Elements

  • Group 15 elements: General introduction, electronic configuration, occurrence, oxidation states, trends in physical and chemical properties; preparation and properties of ammonia and nitric acid, oxides of nitrogen (structure only); Phosphorous- allotropic forms; compounds of phosphorous: preparation and properties of phosphine, halides (PCI3 , PCI5 ) and oxoacids (elementary idea only).
  • Group 16 elements: General introduction, electronic configuration, oxidation states, occurrence, trends in physical and chemical properties; dioxygen: preparation, properties and uses; classification of oxides; ozone. Sulphur – allotropic forms; compounds of sulphur: preparation, preparation, properties and uses of sulphur dioxide; sulphuric acid: industrial process of manufacture, properties and uses, oxoacids of sulphur (structures only).
  • Group 17 elements: General introduction, electronic configuration, oxidation states, occurrence, trends in physical and chemical properties; compounds of halogens: preparation, properties and uses of chlorine and hydrochloric acid, interhalogen compounds oxoacids of halogens (structures only).
  • • Group 18 elements: General introduction, electronic configuration, occurrence, trends in physical and chemical properties, uses.

VIII

Redox Reactions

Concept 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.

VIII

d- and f-Block Elements

  • General introduction, electronic configuration, characteristics of transition metals, general trends in properties of the first row transition metals- metallic character, ionization enthalpy, oxidation states, ionic radii, colour, catalytic property, magnetic properties, interstitial compounds, alloy formation. Preparation and properties of K2Cr2O7 and KMnO4.
  • Lanthanoids- electronic configuration, oxidation states, chemical reactivity, and lanthanoid contraction and its consequences.
  • Actinoids: Electronic configuration, oxidation states and comparison with lanthanoids

IX

Hydrogen

  • Pascal’s law; Buoyancy.
  • Occurrence, 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;

IX

Coordination Compounds

Coordination compounds: Introduction, ligands, coordination number, colour, magnetic properties and shapes, IUPAC nomenclature of mononuclear coordination compounds, isomerism (structural and stereo) bonding, Werner’s theory VBT,CFT; importance of coordination compounds (in qualitative analysis, biological systems).

X

s-Block Elements

  • Group I and group 2 elements:
  • General introduction, electronic configuration, occurrence, anomalous properties of the first element of each group, diagonal relationship, trends in the variation of properties (such as ionization enthalpy, atomic and ionic radii), trends in chemical reactivity with oxygen, water, hydrogen and halogens; uses.
  • Preparation and Properties of Some important Compounds:
  • Sodium carbonate, sodium chloride, sodium hydroxide and sodium hydrogencarbonate, biological importance of sodium and potassium.
  • Industrial use of lime and limestone, biological importance of Mg and Ca.

X

Haloalkanes and Haloarenes

  • Haloalkanes: Nomenclature, nature of C –X bond, physical and chemical properties, mechanism of substitution reactions. Optical rotation.
  • Haloarenes: Nature of C-X bond, substitution reactions (directive influence of halogen for monosubstituted compounds only).
  • Uses and environment effects of – dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons, DDT.

XI

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 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.

XI

Alcohols, Phenols and Ethers

  • Alcohols: Nomenclature, methods of preparation, physical and chemical properties (of primary alcohols only); identification of primary, secondary and tertiary alcohols; mechanism of dehydration, uses with special reference to methanol and ethanol.
  • Phenols: Nomenclature, methods of preparation, physical and chemical properties, acidic nature of phenol, electrophillic substitution reactions, uses of phenols.
  • Ethers: Nomenclature, methods of preparation, physical and chemical properties uses.

XII

Organic Chemistry: Basic Principles & 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 hyper conjugation.
  • Homolytic and heterolytic fission of a covalent bond: free radials, carbocations, carbanions; electrophiles and nucleophiles, types of organic reactions.

XII

Aldehydes, Ketones and Carboxylic Acids

  • Principles and methods of extraction- concentration, oxidation, reduction electrolytic method and refining; occurrence and principles of extraction of aluminium, copper, zinc and iron.
  • Carboxylic Acids: Nomenclature, acidic nature, methods of preparation, physical and chemical properties; uses.

XIII

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.

XIII

Organic Compounds containing Nitrogen

  • Amines: Nomenclature, classification, structure, methods of preparation, physical and chemical properties, uses, identification of primary secondary and tertiary amines.
  • Cyanides and Isocyanides- will be mentioned at relevant places.
  • Diazonium salts: Preparation, chemical reactions and importance in synthetic organic chemistry.

XIV

Environmental Chemistry

Environmental 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, greenhouse effect and global warming-pollution due to industrial wastes; green chemistry as an alternative tool for reducing pollution, strategy for control of environmental pollution.

XIV

Biomolecules

  • Carbohydrates- Classification (aldoses and ketoses), monosaccharide (glucose and fructose), D.L. configuration, oligosaccharides (sucrose, lactose, maltose), polysaccharides (starch, cellulose, glycogen): importance.
  • Proteins- Elementary idea of – amino acids, peptide bond, polypeptides, proteins, primary structure, secondary structure, tertiary structure and quaternary structure (qualitative idea only), denaturation of proteins; enzymes.
  • Hormones- Elementary idea (excluding structure).
  • Vitamins- Classification and function.
  • Nucleic Acids: DNA and RNA

XV

Polymers

Classification- Natural and synthetic, methods of polymerization (addition and condensation), copolymerization. Some important polymers: natural and synthetic like polyesters, bakelite; rubber, Biodegradable and non-biodegradable polymers.

XVI

Chemistry in Everyday Life

  • Chemicals in medicines- analgesics, tranquilizers, antiseptics, disinfectants, antimicrobials, antifertility drugs, antibiotics,antacids, antihistamines.
  • Chemicals in food- preservatives, artificial sweetening agents, elementary idea of antioxidants.
  • Cleansing agents- soaps and detergents, cleansing action.

Steps to retain the concepts (Sequence of events, as suggested by toppers)

  • Start With IITianAcademy Concept Notes.
  • Read and understand the chapter from NCERT
  • Try to derive the equation and understand the logic behind it
  • Now read the same chapter from the reference book
  • Start solving the relevant questions
  • Solve Quizes. Theses are exactly as per questions asked in Exam. You might get many direct concepts from here in actual exam. These will also help you to improve speed and accuracy.
  • Get connected to expert through Virtual classes and online chat

Best books for NEET Chemistry

To begin your preparation, start with the NCERT books. NEET preparation is incomplete without the NCERT books. NCERT books are to the point and will help you make notes.

  • NCERT Chemistry textbooks for Class XI
  • NCERT Chemistry textbooks for Class XII
  • Modern’s ABC of Chemistry for Class XI
  • Modern’s ABC of Chemistry for Class XII

After completing the NEET books given above, you can start solving the question papers from the previous years. Once the basics are covered and you know what is what, you can start with the more complex reference books. The question paper has questions of various difficulty levels. Some of them require a deeper knowledge of the topic, which is where the reference books come to the rescue. Some of expert and topper suggested reference books for Chemistry are:

  • Physical Chemistry by O P Tandon
  • ABC of Chemistry for Classes 11 and 12 by Modern
  • Concise Inorganic Chemistry by J D Lee
  • Dinesh Chemistry Guide
  • Practise books by V K Jaiswal (Inorganic), M S Chauhan (Organic) and N Awasthi (Physical)
  • Organic Chemistry by Morrison and Boyd for Organic Chemistry
  • Elementary Problems in Organic Chemistry for NEET/AIIMS by M S Chauhan
  • Modern Approach to Chemical Calculations by R C Mukherjee

NEET Chapter Wise Weightage for Chemistry

Chemistry section of NEET has 45 questions. The three sub-sections of Chemistry; inorganic, organic and physical, have nearly equal weightage in the question paper. Candidates can refer to the table below to know the weightage of individual chapters.

  • chapter-wise-weightage-NEET-chemistry

NEET Chapter Wise Weightage 2020 for Chemistry

Chemistry Chapters and topicsAverage no. of Questions from the chapterWeightage of the chapter and topic
Inorganic Chemistry-I22%
Chemical Bonding49%
p-block37%
Periodic Table & Periodicity in Properties24%
Hydrogen12%
s-block13%
Inorganic Chemistry-II12%
Coordination Compounds36%
d-block & f-block Elements24%
Metallurgy12%
Qualitative Analysis12%
Organic Chemistry-I8%
Hydrocarbons24%
General Organic Chemistry25%
Organic Chemistry-II26%
Haloalkane12%
Aldehydes, Ketones and Carboxylic Acids23%
Polymer12%
Alkyl Halide, Alcohol & Ether24%
Aromatic Compounds36%
Biomolecules24%
Carbonyl Compounds24%
Organic Compounds containing nitrogen23%
Chemistry in Everyday Life23%
Environmental chemistry12%
IUPAC & Isomerism24%
Practical Organic Chemistry12%
Physical Chemistry-I17%
Atomic Structure & Nuclear Chemistry13%
Chemical Equilibrium13%
Ionic Equilibrium24%
Redox Reactions12%
Gaseous State13%
Mole Concept25%
Thermodynamics and Thermochemistry13%
Physical Chemistry-II15%
Chemical Kinetics24%
Electrochemistry13%
Solid State13%
Solution & Colligative Properties24%
Surface Chemistry12%

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