NEET 2027 CHEMISTRY
About Course
NEET 2027 Chemistry by CaLeo Academy provides structured and comprehensive preparation across Physical Chemistry, Organic Chemistry, and Inorganic Chemistry for NEET UG 2027.
The course is designed to help students understand core chemical principles rather than relying only on memorisation. Physical Chemistry topics emphasise concepts, formulas, numerical problem solving, and calculation strategies. Organic Chemistry develops reaction understanding, mechanisms, conversions, nomenclature, and functional-group relationships. Inorganic Chemistry focuses on systematic learning, important trends, reactions, exceptions, and high-yield facts required for NEET.
Lessons are organised according to the NEET syllabus and supported by concise notes, formula sheets, reaction summaries, concept tables, worked examples, practice questions, chapter-wise assessments, high-yield revision material, and cumulative question banks.
Special emphasis is placed on frequently tested concepts, Previous Year Concepts, common errors, important reactions, formula application, and rapid revision before examinations.
The course is suitable for Class 11 and 12 students, NEET repeaters, and learners seeking complete Chemistry preparation for NEET UG 2027.
What Will You Learn?
- Official-syllabus sequencing, clear concepts, equation and reaction accuracy, worked applications, high-yield revision and NEET-standard practice.
Course Content
Unit 1 — Some Basic Concepts in Chemistry
Official NEET UG 2026 Chemistry Unit 1. CaLeo Academy NEET UG 2027 Chemistry course.
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1.1 Nature of Matter
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1.2 Atoms, Molecules, Elements and Compounds
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1.3 Dalton’s Atomic Theory and Modern View
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1.4 Law of Conservation of Mass
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1.5 Law of Definite Proportions
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1.6 Law of Multiple Proportions
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1.7 Combining Gas Volumes and Avogadro Principle
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1.8 Atomic, Molecular and Formula Masses
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1.9 Mole Concept and Avogadro Constant
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1.10 Molar Mass and Mass-Mole Conversion
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1.11 Counting Atoms, Molecules, Ions and Formula Units
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1.12 Percentage Composition
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1.13 Empirical Formula from Composition
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1.14 Molecular Formula from Empirical Formula
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1.15 Balanced Chemical Equations as Mole Ratios
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1.16 Stoichiometric Calculations
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1.17 Limiting Reagent
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1.18 Percentage Yield and Purity
Unit 2 — Atomic Structure
Official NEET UG 2026 Chemistry Unit 2. CaLeo Academy NEET UG 2027 Chemistry course.
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2.1 Subatomic Particles
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2.2 Atomic Number, Mass Number, Isotopes and Isobars
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2.3 Electromagnetic Radiation
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2.4 Planck Quantum Theory and Photons
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2.5 Photoelectric Effect
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2.6 Hydrogen Line Spectrum
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2.7 Bohr Model of Hydrogen-Like Species
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2.8 de Broglie Matter Waves
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2.9 Heisenberg Uncertainty Principle
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2.10 Quantum-Mechanical Model and Orbitals
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2.11 Principal Quantum Number n
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2.12 Azimuthal Quantum Number l
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2.13 Magnetic Quantum Number m_l
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2.14 Spin Quantum Number and Pauli Exclusion
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2.15 Orbital Shapes and Nodes
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2.16 Aufbau Principle and n+l Rule
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2.17 Pauli and Hund Rules in Orbital Filling
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2.18 Cr, Cu and Extra Stability
Unit 3 — Chemical Bonding and Molecular Structure
Official NEET UG 2026 Chemistry Unit 3. CaLeo Academy NEET UG 2027 Chemistry course.
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3.1 Kossel-Lewis Approach and Octet Rule
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3.2 Ionic Bonding and Lattice Enthalpy
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3.3 Covalent Bonding and Lewis Structures
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3.4 Formal Charge and Resonance
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3.5 Bond Parameters
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3.6 Bond Polarity and Dipole Moment
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3.7 Fajan’s Rule and Covalent Character
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3.8 VSEPR Theory
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3.9 sp, sp² and sp³ Hybridisation
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3.10 sp³d and sp³d² Descriptive Hybridisation
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3.11 Lone-Pair Effects on Shape and Bond Angle
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3.12 Valence Bond Theory: Sigma and Pi Bonds
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3.13 Molecular Orbital Theory
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3.14 Bond Order, Stability and Magnetism by MOT
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3.15 MO Energy Ordering for Second-Period Diatomics
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3.16 Metallic Bonding
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3.17 Hydrogen Bonding
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3.18 Coordinate Covalent Bond
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3.19 Integrated Molecular-Structure Prediction
Unit 4 — Chemical Thermodynamics
Official NEET UG 2026 Chemistry Unit 4. CaLeo Academy NEET UG 2027 Chemistry course.
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4.1 Thermodynamic System and Surroundings
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4.2 State Functions, Path Functions and Properties
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4.3 Thermodynamic Processes
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4.4 Internal Energy
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4.5 Heat and Work Sign Convention
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4.6 First Law of Thermodynamics
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4.7 Pressure-Volume Work
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4.8 Enthalpy
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4.9 Relation Between ΔH and ΔU
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4.10 Heat Capacity and Calorimetry
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4.11 Standard Enthalpy of Formation
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4.12 Hess’s Law
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4.13 Bond Enthalpy and Atomisation
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4.14 Enthalpy of Combustion and Solution
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4.15 Spontaneity
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4.16 Entropy
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4.17 Gibbs Free Energy
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4.18 Gibbs Energy and Equilibrium
Unit 5 — Solutions
Official NEET UG 2026 Chemistry Unit 5. CaLeo Academy NEET UG 2027 Chemistry course.
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5.1 Solutions, Solvent and Solute
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5.2 Mass Percentage
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5.3 Volume Percentage
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5.4 Mass-by-Volume Percentage
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5.5 Molarity
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5.6 Molality
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5.7 Mole Fraction
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5.8 Interconverting Concentration Units
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5.9 Vapour Pressure of Solutions
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5.10 Raoult’s Law
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5.11 Ideal Solutions
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5.12 Positive Deviation from Raoult’s Law
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5.13 Negative Deviation from Raoult’s Law
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5.14 Relative Lowering of Vapour Pressure
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5.15 Elevation of Boiling Point
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5.16 Depression of Freezing Point
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5.17 Osmosis and Osmotic Pressure
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5.18 van’t Hoff Factor and Abnormal Molar Mass
Unit 6 — Equilibrium
Official NEET UG 2026 Chemistry Unit 6. CaLeo Academy NEET UG 2027 Chemistry course.
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6.1 Dynamic Equilibrium
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6.2 Physical Equilibria and Henry’s Law
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6.3 Law of Mass Action and Kc
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6.4 Kp and Kc
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6.5 Magnitude of the Equilibrium Constant
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6.6 Gibbs Energy and Chemical Equilibrium
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6.7 Reaction Quotient Q
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6.8 Le Chatelier Principle — Concentration
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6.9 Le Chatelier Principle — Pressure and Volume
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6.10 Temperature and Catalyst Effects
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6.11 Homogeneous and Heterogeneous Equilibrium
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6.12 Electrolytes and Degree of Ionization
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6.13 Acid–Base Concepts
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6.14 Ka, Kb and Conjugate Acid–Base Pairs
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6.15 Kw, pH and pOH
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6.16 pH of Weak Acids and Weak Bases
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6.17 Common-Ion Effect
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6.18 Buffer Solutions and Henderson Equation
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6.19 Salt Hydrolysis
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6.20 Solubility Product Ksp and Precipitation
Unit 7 — Redox Reactions and Electrochemistry
Official NEET UG 2026 Chemistry Unit 7. CaLeo Academy NEET UG 2027 Chemistry course.
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7.1 Redox Foundations: Oxidation, Reduction and Oxidation Number
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7.2 Balancing Redox Reactions Systematically
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7.3 Metallic and Electrolytic Conduction
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7.4 Resistance, Conductance, Conductivity and Cell Constant
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7.5 Molar Conductivity: Meaning and Calculation
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7.6 Variation of Conductivity and Molar Conductivity with Concentration
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7.7 Kohlrausch’s Law of Independent Migration of Ions
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7.8 Applications of Kohlrausch’s Law
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7.9 Galvanic and Electrolytic Cells
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7.10 Cell Notation, Electron Flow and the Salt Bridge
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7.11 Types of Electrodes and Half-Cell Reactions
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7.12 Electrode Potential and the Standard Hydrogen Electrode
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7.13 Standard Cell Potential: E°cell = E°cathode − E°anode
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7.14 Cell Potential, Direction and Spontaneity
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7.15 Nernst Equation for a Half-Cell
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7.16 Nernst Equation for Cell Potential
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7.17 Concentration Cells
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7.18 Gibbs Energy and Cell Potential
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7.19 Equilibrium Constant and Standard Cell Potential
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7.20 Commercial Cells: Dry Cell and Lead Accumulator
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7.21 Hydrogen–Oxygen Fuel Cell
Unit 8 — Chemical Kinetics
Official NEET UG 2026 Chemistry Unit 8. CaLeo Academy NEET UG 2027 Chemistry course.
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8.1 Reaction Rate — Average and Instantaneous
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8.2 Stoichiometric Rate Expression
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8.3 Concentration and Pressure Effects on Rate
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8.4 Temperature and Catalyst Effects
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8.5 Elementary and Complex Reactions
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8.6 Rate Law and Rate Constant
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8.7 Determining Reaction Order from Rate Data
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8.8 Order versus Molecularity
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8.9 Units of the Rate Constant
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8.10 Zero-Order Kinetics — Integrated Law
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8.11 Zero-Order Graph and Half-Life
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8.12 First-Order Kinetics — Integrated Law
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8.13 First-Order Graph and Half-Life
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8.14 Identifying Zero- and First-Order Behaviour
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8.15 Arrhenius Equation and Temperature Dependence
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8.16 Calculating Activation Energy from Two Temperatures
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8.17 Catalyst and Activation-Energy Profile
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8.18 Collision Theory for Bimolecular Gas Reactions
Unit 9 — Classification of Elements and Periodicity in Properties
Official NEET UG 2026 Chemistry Unit 9. CaLeo Academy NEET UG 2027 Chemistry course.
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9.1 Modern Periodic Law
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9.2 Present Periodic Table — Periods and Groups
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9.3 s-Block Elements
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9.4 p-Block Elements
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9.5 d-Block Elements
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9.6 f-Block Elements
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9.7 Why Periodic Trends Occur — Nuclear Attraction and Shielding
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9.8 Atomic Radius Trends
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9.9 Ionic Radius and Isoelectronic Series
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9.10 Ionization Enthalpy — General Trend
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9.11 Ionization Enthalpy — Key Anomalies
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9.12 Successive Ionization Enthalpies
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9.13 Electron Gain Enthalpy — General Trend
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9.14 Electron Gain Enthalpy — Important Exceptions
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9.15 Valence Across the Periodic Table
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9.16 Oxidation States and Periodic Position
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9.17 Periodic Trends in Chemical Reactivity
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9.18 Integrated Periodic Trend Reasoning
Unit 10 — P-Block Elements
Official NEET UG 2026 Chemistry Unit 10. CaLeo Academy NEET UG 2027 Chemistry course.
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10.1 P-Block Overview — Groups 13 to 18
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10.2 Group 13 — General Trends
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10.3 Why Boron Is Different
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10.4 Group 14 — General Trends
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10.5 Why Carbon Is Different
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10.6 Group 15 — General Trends
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10.7 Why Nitrogen Is Different
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10.8 Group 16 — General Trends
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10.9 Why Oxygen Is Different
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10.10 Group 17 — General Trends
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10.11 Why Fluorine Is Different
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10.12 Group 18 — General Trends
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10.13 Why Helium Is Different
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10.14 Inert-Pair Effect and Oxidation-State Stability
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10.15 Physical Trends Across the P Block
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10.16 Chemical Trends Across the P Block
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10.17 Why the First Element of Each P-Block Group Is Special
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10.18 Integrated P-Block Reasoning
Unit 11 — d- and f-Block Elements
Official NEET UG 2026 Chemistry Unit 11. CaLeo Academy NEET UG 2027 Chemistry course.
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11.10 Interstitial Compounds and Alloy Formation
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11.11 Potassium Dichromate — Preparation and Chromate–Dichromate Equilibrium
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11.12 Potassium Dichromate — Oxidizing Properties and Uses
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11.13 Potassium Permanganate — Preparation
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11.14 Potassium Permanganate — Oxidizing Behaviour in Different Media
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11.15 Lanthanoids — Electronic Configuration and Oxidation States
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11.16 Lanthanoid Contraction
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11.17 Actinoids — Electronic Configuration and Oxidation States
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11.18 Integrated d- and f-Block Reasoning
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11.1 Transition Elements — Definition and Electronic Configuration
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11.2 Occurrence and Physical Characteristics of Transition Elements
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11.3 Atomic and Ionic Radii Across the 3d Series
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11.4 Ionization Enthalpy in the First Transition Series
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11.5 Variable Oxidation States of Transition Elements
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11.6 Colour of Transition-Metal Ions
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11.7 Magnetic Properties and Spin-Only Magnetic Moment
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11.8 Catalytic Behaviour of Transition Elements
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11.9 Complex Formation by Transition-Metal Ions
Unit 12 — Coordination Compounds
Official NEET UG 2026 Chemistry Unit 12. CaLeo Academy NEET UG 2027 Chemistry course.
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12.1 Coordination Compounds — Core Language
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12.2 Werner’s Theory — Primary and Secondary Valencies
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12.3 Ligands — Charge and Donor Atoms
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12.4 Denticity and Chelation
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12.5 Coordination Number and Common Geometries
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12.6 IUPAC Naming — Ligands, Order and Metal Name
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12.7 IUPAC Naming — Oxidation State and Formula Writing
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12.8 Structural Isomerism — Ionization, Hydrate and Linkage
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12.9 Coordination Isomerism
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12.10 Geometrical Isomerism — cis/trans and fac/mer
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12.11 Optical Isomerism in Coordination Compounds
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12.12 VBT — Octahedral Inner- and Outer-Orbital Complexes
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12.13 VBT — Tetrahedral and Square-Planar Complexes
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12.14 Crystal Field Theory — Octahedral Splitting
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12.15 Crystal Field Theory — Strong/Weak Fields and Spin State
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12.16 Crystal Field Theory — Tetrahedral Splitting
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12.17 Colour and Magnetic Properties of Complexes
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12.18 Why Coordination Compounds Matter
Unit 13 — Purification and Characterisation of Organic Compounds
Official NEET UG 2026 Chemistry Unit 13. CaLeo Academy NEET UG 2027 Chemistry course.
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13.1 Choosing the Right Purification Method
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13.2 Crystallization — Principle and Solvent Choice
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13.3 Sublimation
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13.4 Simple Distillation
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13.5 Fractional Distillation
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13.6 Steam Distillation
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13.7 Differential Extraction
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13.8 Chromatography — Stationary and Mobile Phases
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13.9 TLC/Paper Chromatography and Rf
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13.10 Lassaigne’s Sodium Fusion
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13.11 Qualitative Detection of Nitrogen
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13.12 Qualitative Detection of Sulphur
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13.13 Qualitative Detection of Halogens
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13.14 Qualitative Detection of Phosphorus
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13.15 Quantitative Estimation of Carbon and Hydrogen
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13.16 Quantitative Estimation of Nitrogen
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13.17 Gravimetric Estimation of Halogens, Sulphur and Phosphorus
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13.18 Empirical and Molecular Formulae
Unit 14 — Some Basic Principles of Organic Chemistry
Official NEET UG 2026 Chemistry Unit 14. CaLeo Academy NEET UG 2027 Chemistry course.
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14.1 Carbon Tetravalency and Organic Diversity
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14.2 Hybridization and Shapes of Carbon
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14.3 Classification of Organic Compounds
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14.4 Homologous Series
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14.5 Structural Isomerism
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14.6 Stereoisomerism — Geometrical and Optical Basics
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14.7 Basic IUPAC Nomenclature — Parent Chain and Numbering
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14.8 IUPAC Nomenclature — Functional Group Priority
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14.9 Homolytic and Heterolytic Bond Fission
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14.10 Carbocations and Their Stability
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14.11 Free Radicals and Their Stability
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14.12 Carbanions and Their Stability
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14.13 Electrophiles and Nucleophiles
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14.14 Inductive Effect
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14.15 Electromeric Effect
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14.16 Resonance and Delocalization
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14.17 Hyperconjugation
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14.18 Common Types of Organic Reactions
Unit 15 — Hydrocarbons
Official NEET UG 2026 Chemistry Unit 15. CaLeo Academy NEET UG 2027 Chemistry course.
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15.1 Hydrocarbons — Classification, Isomerism and Nomenclature
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15.2 Preparation and Physical Properties of Hydrocarbons
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15.3 Alkanes — Preparation and Characteristic Reactions
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15.4 Ethane Conformations — Newman and Sawhorse
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15.5 Free-Radical Halogenation of Alkanes
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15.6 Alkenes — Preparation, Structure and Geometrical Isomerism
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15.7 Electrophilic Addition to Alkenes
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15.8 Alkenes — Hydrogenation and Halogen Addition
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15.9 Markovnikov Addition and Alkene Hydration
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15.10 Peroxide Effect — Anti-Markovnikov HBr Addition
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15.11 Ozonolysis of Alkenes
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15.12 Addition Polymerization of Alkenes
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15.13 Alkynes — Preparation, Structure and Acidic Character
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15.14 Alkynes — Addition of H₂, X₂ and HX
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15.15 Alkynes — Hydration and Polymerization
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15.16 Benzene — Structure and Aromaticity
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15.17 Electrophilic Aromatic Substitution — Halogenation and Nitration
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15.18 Friedel–Crafts Reactions and Directing Effects
Unit 16 — Organic Compounds Containing Halogens
Official NEET UG 2026 Chemistry Unit 16. CaLeo Academy NEET UG 2027 Chemistry course.
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16.1 Classification and Nomenclature of Halogen Compounds
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16.2 Preparation of Haloalkanes from Alcohols
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16.3 Halogenation and Halogen Exchange
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16.4 Preparation of Haloarenes
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16.5 Nature of the Carbon–Halogen Bond
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16.6 Physical Properties of Halo Compounds
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16.7 Nucleophilic Substitution — The Big Picture
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16.8 SN2 Mechanism — Concerted Backside Attack
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16.9 SN1 Mechanism — Carbocation Pathway
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16.10 Choosing Between SN1 and SN2
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16.11 Substitution Versus Elimination
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16.12 Ambidentate Nucleophiles and Ammonia
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16.13 Metal Reactions and Grignard Reagents
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16.14 Why Haloarenes Resist Nucleophilic Substitution
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16.15 Haloarenes — Electrophilic Substitution and Directing Effect
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16.16 Chloroform and Iodoform
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16.17 Freons and Ozone Depletion
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16.18 DDT and Integrated Unit 16 Reasoning
Unit 17 — Organic Compounds Containing Oxygen
Official NEET UG 2026 Chemistry Unit 17. CaLeo Academy NEET UG 2027 Chemistry course.
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17.2 Alcohols — Preparation and Physical Properties
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17.1 Oxygen Functional Groups — The Big Map
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17.3 Primary, Secondary and Tertiary Alcohols
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17.4 Acid-Catalyzed Dehydration of Alcohols
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17.5 Why Phenol Is Acidic
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17.6 Electrophilic Substitution in Phenol
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17.8 Ether Structure and Bonding
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17.7 Reimer–Tiemann Reaction
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17.10 Nucleophilic Addition to C=O
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17.9 The Carbonyl Group and Relative Reactivity
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17.11 HCN and NH₃-Derivative Additions
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17.12 Grignard Addition to Carbonyl Compounds
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17.13 Oxidation and Reduction of Carbonyl Compounds
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17.14 α-Hydrogen and Aldol Condensation
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17.15 Cannizzaro Reaction
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17.16 Haloform Reaction
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17.17 Tests for Aldehydes and Ketones
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17.18 Carboxylic Acid Strength
Unit 18 — Organic Compounds Containing Nitrogen
Official NEET UG 2026 Chemistry Unit 18. CaLeo Academy NEET UG 2027 Chemistry course.
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18.1 Amines — Classification and Nomenclature
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18.2 Amine Structure and the Nitrogen Lone Pair
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18.3 Preparation by Ammonolysis of Haloalkanes
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18.4 Reduction Routes to Amines
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18.5 Gabriel Phthalimide Synthesis
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18.6 Hofmann Bromamide Degradation
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18.7 Physical Properties of Amines
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18.8 Basicity of Aliphatic Amines
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18.9 Why Aniline Is Less Basic
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18.10 Salt Formation, Alkylation and Acylation
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18.11 Carbylamine Test for Primary Amines
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18.12 Hinsberg Test
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18.13 Amines and Nitrous Acid
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18.14 Electrophilic Substitution in Aniline
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18.15 Diazotization of Aromatic Primary Amines
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18.16 Diazonium Replacement Reactions
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18.17 Azo Coupling
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18.18 Integrated Amine and Diazonium Synthesis
Unit 19 — Biomolecules
Official NEET UG 2026 Chemistry Unit 19. CaLeo Academy NEET UG 2027 Chemistry course.
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19.1 Biomolecules — An Overview
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19.2 Classification of Carbohydrates
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19.3 Glucose — The Aldohexose
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19.4 Fructose — The Ketohexose
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19.5 Sucrose
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19.6 Lactose
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19.7 Maltose
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19.8 α-Amino Acids
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19.9 Peptide Bonds and Polypeptides
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19.10 Primary Structure of Proteins
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19.11 Secondary Structure of Proteins
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19.12 Tertiary and Quaternary Protein Structure
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19.13 Protein Denaturation
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19.14 Enzymes
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19.15 Vitamins — Classification and Functions
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19.16 Nucleosides and Nucleotides
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19.17 DNA and RNA — Composition and Functions
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19.18 Hormones — General Introduction
Unit 20 — Principles Related to Practical Chemistry
Official NEET UG 2026 Chemistry Unit 20. CaLeo Academy NEET UG 2027 Chemistry course.
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20.1 Detection of Extra Elements — Lassaigne Principle
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20.2 Detection of Alcoholic and Phenolic –OH
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20.3 Detection of Carbonyl Compounds
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20.4 Detection of Carboxyl Group
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20.5 Detection of Amino Group
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20.6 Preparation of Mohr’s Salt
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20.7 Preparation of Potash Alum
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20.8 Acetanilide and p-Nitroacetanilide
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20.9 Aniline Yellow and Iodoform
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20.10 Acid–Base Titrations and Indicators
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20.11 Oxalic Acid versus KMnO₄
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20.12 Mohr’s Salt versus KMnO₄
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20.13 Qualitative Cation Analysis I
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20.14 Qualitative Cation Analysis II
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20.15 Qualitative Anion Analysis I
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20.16 Qualitative Anion Analysis II
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20.17 Calorimetry — Enthalpy of Solution and Neutralization
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20.18 Lyophilic/Lyophobic Sols and Iodide–H₂O₂ Kinetics
