Syllabus of the NEET-UG is prepared by CBSE, NCERT and COBSE after review
of various State syllabi to establish a uniformity across the country
keeping in view the relevance of different areas in medical education.
Contents Class XI Syllabus
UNIT I: Some Basic Concepts of Chemistry
General Introduction: Important and scope 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.
UNIT 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.
UNIT III: Classification of Elements and 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.
UNIT 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.
UNIT 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).
UNIT 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.
UNIT 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).
UNIT 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.
UNIT IX: Hydrogen
Occurrence, isotopes, preparation, properties and uses of hydrogen;
hydridesionic, covalent and interstitial; physical and chemical properties of water, heavy
water; hydrogen peroxide-preparation, reactions, uses and structure;
UNIT X: s-Block Elements (Alkali and Alkaline earth metals)
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.
UNIT 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.
UNIT XII: 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 hyper conjugation.
Homolytic and heterolytic fission of a covalent bond: free radials,
carbocations, carbanions; electrophiles and nucleophiles, types of organic reactions.
UNIT XIII: Hydrocarbons
Alkanes- Nomenclature, isomerism, conformations (ethane only), physical properties, chemical reactions including free radical mechanism of
halogenation, combustion and pyrolysis.
Alkanes-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 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.
Contents Class XII Syllabus
UNIT 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.
UNIT 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.
UNIT 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-
electrolytxc 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.
UNIT 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.
UNIT 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.
UNIT VI: General Principles and Processes of 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.
UNIT 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.
UNIT 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.
UNIT 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).
UNIT 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.
UNIT 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.
UNIT XII: Aldehydes, Ketones and Carboxylic Acids
Aldehydes and Ketones: Nomenclature, nature of carbonyl group, methods of
preparation, physical and chemical properties; and mechanism of nucleophilic
addition, reactivity of alpha hydrogen in aldehydes; uses.
Carboxylic Acids: Nomenclature, acidic nature, methods of preparation, physical
and chemical properties; uses.
UNIT 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.
UNIT 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
UNIT 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.
