Common Chemistry Topics in NCERT and NEET Syllabus 2026

Chapter

Concept

NCERT

NEET

Basic concepts of Chemistry

Importance of Chemistry And Nature of Matter

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Properties of Matter and their Measurement

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Classification of Matter

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Laws of Chemical Combinations

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Empirical Formula And Molecular Formula

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Dalton’s Atomic Theory

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Atomic and Molecular Masses

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Percentage Composition And Equivalent Weight

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Mole Concept and Molar Mass

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Stoichiometry, Stoichiometric Calculations And Limiting Reagent

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Reactions in Solutions

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Structure of Atom

Atomic Number(Z), Mass number(A), Isotopes and Isobars

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Speed of electromagnetic radiation and EM radiation

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Planck’s quantum theory

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Photoelectric effect

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Line spectrum of hydrogen

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Bohr’s Model for Hydrogen Atom

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Radius, velocity and the energy of nth Bohr orbital

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Zeeman effect, Stark effect and Limitations of Bohr’s theory

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Debroglie wavelength

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Heisenberg’s uncertainty principle

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Orbital frequency

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Quantum Numbers

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Shape of Orbitals

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Radial nodes and planar nodes

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Stability of Completely filled and Half-filled Subshells

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Aufbau Principle, Pauli Exclusion Principle and Hund’s Rule of Maximum Multiplicity

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Electronic configuration of any element

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Classification of elements & periodicity in properties

Introduction of Periodic Table

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Mendeleev’s Periodic table

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Long form of Modern periodic table

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How to find Group, Periods and Blocks of any element

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IUPAC Nomenclature and Notation of Element

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Classification of Elements : s-block

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Classification of Elements : p-block

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Classification of Elements : d-block

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Classification of Elements : f-block

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Classification of Elements as Metals, Nonmetals and Metalloids

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Atomic Radius of Elements

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Variation of Atomic Radii and ionic radii

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Ionisation Enthalpy or Ionisation Potential

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Comparison between different I.E.

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Electron Gain Enthalpy or Electron Affinity

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Electronegativity

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Scale for measuring electronegativity and application of EN

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Physical Properties of Elements

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Chemical Properties of Elements

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Chemical Bonding and molecular structure

Introduction

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Theory of chemical bonding

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Lewis Representation of Simple Molecules (Lewis Structure)

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Ionic or Electrovalent Bond

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Lattice Enthalpy

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Bond Parameters: length, angle, energy, strength

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Bond Parameters: Order, Resonance, Resonance Hybrid

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Fazan’s Rule and Covalent Character in Ionic Bond

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Valence Bond Theory

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p?-p? and p?-d? bonding

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Hybridisation

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How to Find Hybridisation

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VSPER (Valence Shell Electron Pair Repulsion) Theory

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Shapes of Molecules

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Molecular Orbital Theory

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Types of Molecular Orbitals

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Electronic Configuration for Molecules

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Energy Level Diagram for Molecules

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Dipole Moment

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Ionic Character in Covalent Bond

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Bond angle and Drago’s rule

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Hydrogen Bonding

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Smart Tips: Chemical Bonding and Molecular Structure

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Thermodynamics

Thermodynamics

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Thermodynamics: Properties Of System

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Path, State Function, Types Of Process

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Reversible, Irreversible, Polytropic Process

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Thermodynamic Equilibrium

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Heat And Work

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Internal Energy

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First Law Or Law Of Conservation Of Energy

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Isothermal Reversible And Isothermal Irreversible

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Adiabatic Reversible And Irreversible Expansion

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Graphical Representation Of Work Done In Thermodynamics

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Heat Capacity

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Relation Between Cp And Cv

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Thermochemistry And Enthalpy For Chemical Reaction

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Standard Enthalpy And Enthalpy Of Formation

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Enthalpy Of Combustion

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Enthalpy Of Dissociation, Atomisation And Phase Change

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Lattice Enthalpy, Hydration Enthalpy And Enthalpy Of Solution

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Enthalpy Of Neutralisation

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Ionization And Electron Gain Enthalpy

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Born Habers Cycle

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Hess’s Law

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Entropy And Change In Entropy

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Calculation Of Changes In S For Different Process

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Spontaneity Criteria Through Entropy

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Spontaneity Criteria Through Enthalpy (H) And Entropy (S)

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2nd Law Of Thermodynamics

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Gibbs Energy And Change In Gibbs Energy

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Spontaneity Criteria With Gibbs Energy (G)

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Gibbs Energy At Equilibrium

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Equilibrium

Introduction to chemical equilibrium

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Characteristics of Chemical Equilibrium

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Law of Mass Action

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Types of Equilibrium Constant

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Relation between Kp and Kc

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Characteristics of Equilibrium Constant

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Degree of Dissociation

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Observed Density and Molar Mass

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Reaction coefficient/quotient

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Le Chatelier’s principle(P, C)

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Le Chatelier’s principle(T, Innert Gas)

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Ionic Equilibrium

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Bronsted Lowry and Lewis Acid-Base theory

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Ionisation Constant of Acids and Bases

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Ostwald’s dilution law

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Ionization Constant of Water / Ionic Product of Water

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Relation Between Ka, Kb and Kw for Conjugate Pair

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pH of Solutions: Strong Acids

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pH of Solutions: Weak Acids

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pH of Solutions: Strong Bases

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pH of solution/mixture

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Common ion effect

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pH of weak acid + strong acid

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Buffer Solution

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Calculating pH of a Buffer Solution(acidic)

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Calculating pH of a Buffer Solution(acidic)

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Working of Acidic Buffer

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Buffer Capacity

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Basic Buffers

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Action of Basic Buffer

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Solubility and Solubility Product

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Redox Reactions

Oxidation Number and Oxidation State

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Types of Redox Reactions

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Displacement Reaction

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Balancing of Redox Reaction: Ion Electrode Method

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Balancing of Disproportionation Redox Reaction: Ion Electrode Method

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Balancing of Redox Reaction: Oxidation Number Method

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Organic Chemistry - Some Basic principles and techniques

Characteristics Features of π-bonds

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Complete, Condensed and Bond-line Structural Formulas

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Classification of Organic Compounds - 1

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Classification of Organic Compounds - 2

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Functional Group

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Homologous Series

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IUPAC Nomenclature - 1

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IUPAC Nomenclature - 2

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Structural Isomerism

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Nomenclature of Compounds(Arenes) - 1

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Substrate and Reagent

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Homolytic and Heterolytic Cleavage

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Carbocations

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Carbanions

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Alkyl Free Radicals

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Nucleophiles and Electrophiles

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Inductive Effect

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Electromeric Effect

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Mesomeric or Resonance Effect

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Hyperconjugation

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Application of Electrophile and Nucleophile

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Rules for Writing Resonance Structure

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Sublimation and Crystallisation

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Distillation and fractional distillation

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Distillation under reduced pressure and Steam distillation

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Differential extraction

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Chromatography

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Test for Hydrogen and Carbon

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Test for Nitrogen and Sulphur

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Test for Halogens

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Test for Phosphorous

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Liebig's Test

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Duma's Method

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Kjeldahl's Method

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Carius Method (Halogen and Sulphur)

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Carius Method (oxygen)

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Hydrocarbons

Nomenclature of Alkanes

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Preparation of Alkanes(Reduction of Alkenes/Alkynes)

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Preparation of Alkanes(Hydroboration Reaction)

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preparation of Alkanes(Grignard Reagent)

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Preparation of Alkanes(Corey House Reaction, Reduction of Alkyl Halides by LiAlH4, Wurtz Reaction)

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Preparation of Alkanes(Decarboxylation and Kolbe's electrolysis)

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Physical Properties

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Chemical Properties(Free Radical Reaction, Chlorination, Nitration and sulphonation)

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Chemical Properties (Combustion, Catalytic Oxidation, Isomerisation, Aromatisation and Pyrolysis)

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Conformation, Sawhorse and Newmann Projections

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Nomenclature of Alkenes

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Reduction of Alkynes to Alkenes

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Dehydration of Alcohol by Conc. H2SO4

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Saytzeff's and Hoffmann Rule, Dehydration by Al2O3 and ThO2

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Dehydrohalogenation of Alkyl Halides

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Dehalogenation of Vicinal Halides

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Wittig's Reaction

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Pyrolysis of Quaternary Ammonium Salts

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Cope's Reaction, Pyrolysis of Ester

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Hydrohalogenation of Alkenes

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Halogenation of Alkenes

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Markonikov and Anti-markonikov Reaction

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Hydroboration and Oxidation

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Reaction of Alkene with Dilute H2SO4

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Preparation of Alkynes

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Hydrohalogenation and Halogenation of Alkynes

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Hydration, Hydroboration and Oxidation of Alkynes

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Reaction with Carbonyls and Oxidative Coupling

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Reaction with HOCl and Polymerisation Reaction

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Aromaticity

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Resonance Structures and Mesomeric Effect

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Reduction of Aromatic Compounds and Radical Addition

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Birch Reduction

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Oxidation of Aromatic Compounds

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Electrophilic substitution- 1

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Electrophilic substitution- 2

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Friedel craft alkylation

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Friedel Craft Acylation

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Halogenation on ring or alkyl chain

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Nitration and Sulphonation

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Solutions

Solution

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Concentration Terms

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Vapour Pressure

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Factors on which Vapour Pressure depends

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Vapour Pressure of Solution Containing Two Volatile Liquids

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Vapour Pressure of Solution Containing Non-Volatile Solute

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Ideal Solution

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Examples of Ideal solution

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Non-Ideal Solution Showing Negative Deviation from Raoult's Law

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Non-Ideal Solution Showing Positive Deviation from Raoult's Law

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Elevation in Boiling Point

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Depression in Freezing Point

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Osmosis and Osmotic Pressure

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Reverse Osmosis

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Isotonic, Hypertonic, Hypotonic Solution

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van't Hoff factor(i) or Abnormal Colligative Property

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Calculation of Extent of Dissociation in an Electrolytic Solution

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Calculation of Extent of Association in an Electrolytic Solution

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Electrochemistry

Introduction to Electrochemistry

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Quantitative Aspect of Electrolytic Cell: Faraday's First Law

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Faraday's Second Law

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Galvanic Cells

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Problem in Galvanic Cells and Salt Bridge

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Function of Salt Bridge and Condition

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Cell Representation of Galvanic Cells

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Electrode Potential and EMF of Cells

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Standard Hydrogen Electrode

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Feasibility and Gibbs Free Energy of Reaction

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Nernst Equation

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Nernst Equation for Full Cell

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Equilibrium Constant Through Nernst Equation

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Conductance of Electrolytic Solutions

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Molar and Equivalent Conductance

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Effect of Dilution on Conductance, Λm, Λeq and Conductivity

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Molar Conductance at Infinite Dilution

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Kohlrausch's Law

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Batteries

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Secondary Batteries

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Chemical Kinetics

Rate of Reaction

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Average Rate of Reaction

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Instantaneous Rate of Reaction

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Factors Affecting Rate of Reaction

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Factors Affecting Rate of Reaction(2)

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Rate Law

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Unit of Rate Constant

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Important Points About Order of Reaction

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Simple/Elementary Single Step Reaction

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Initial Rate Method to Determine Correct Rate Law and Order of Reaction

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Zero Order Kinetics - Zero Order Reaction

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Integrated Rate Law - Zero Order Reaction

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Half Life and Life Time of Reaction

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Graphs for Zero-Order Reaction

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Special Zero Order Reaction

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First Order Reaction

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Other Forms of Rate Law

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Half Life of First Order Reaction

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Graphs of First Order Kinetics

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How to Determine Order of Reaction: Half Life Method

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How to Determine Order of Reaction - Integrated Rate Law Method

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Molecularity of Reaction

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Pseudo Order Reaction

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Order of Reaction vs Molecularity

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Effect of Temperature on Rate of Reaction: Approximate Dependency of K on T

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Effect of Temperature on Rate of Reaction: Accurate Dependency of K on T

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Ratio of Two Rate Constants at Two Different Temperatures

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Exception(Arrhenius Theory)

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Complex Reaction - Mechanism of Reaction

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Complex Reaction (When Intermediate is Incorporated)

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Parallel First Order Kinetics

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Effective Activation Energy

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[A], [B], [C] Vs time(t)

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d and f Block Elements

Transition Elements Introduction

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Screening Effect and Lanthanoid Contraction

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Atomic Size/Radii

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Metallic Character and Enthalpy of Atomization

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Ionisation Energy

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Oxidation State

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Magnetic Properties and Character

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Formation of Coloured Ions

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Formation of Interstitial Compounds

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KMnO4

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K2Cr2O7

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Physical Properties of f-block

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Physical Properties of f-block - 2

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Chemical Properties of Lanthanoids

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Properties of Actinoids

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Coordination Compounds

Terminologies Related to Coordination Compounds

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Types of Ligands - 1

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Types of Ligands - 2

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Oxidation Number

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Coordination Number

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Effective Atomic Number(EAN)

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Writing the Formula of a Complex or Coordination Compound

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IUPAC Nomenclature of Coordination or Complex Compound

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Naming of Complex Ions/Molecules

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Naming of Complex Anion

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Naming of Complex Anion and Complex Cation

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Bonding in Coordination Compounds(Werner's Theory)

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Valence Bond Theory

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Analysis of Complex Compound on the Basis of VBT

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Exceptional Case of Hybridisation(VBT)

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Magnetic Moment(On the Basis of VBT)

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Limitations of VBT

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Main Postulates of Crystal Field Theory

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Crystal Field Splitting in Octahedral Field

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Crystal Field Splitting in Tetrahedral Field

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Factors Affecting CFSE

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Applications of CFT

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Limitations of CFT

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Stereoisomerism

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Structural Isomerism - 1

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Structural Isomerism - 2

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Haloalkanes and Haloarenes

Nature of C-X bond and Physical Properties

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Huns-dicker Reaction

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Reaction with NaCN, AgCN, NaNO2 and AgNO2

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Finkelstein and Swartz Reaction

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Reaction with PCl5, PCl3, SOCl2 and HX

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SN2 Reaction

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SN1 Reaction

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Elimination-Addition Mechanism(I)

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Nucleophilic Substitution

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Preparation of Aryl Halides

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Elimination-Addition Mechanism(II)

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Alcohol, Phenols and Ethers

Grignard Reagent - 1

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Grignard Reagent - 2

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Reduction of Anhydrides and Esters

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Reduction by LiAlH4 and NaBH4

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Properties of Alcohols

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Acylation and Oxidation of Alcohols

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Haloform Reaction

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Pinacol Pinacolone Rearrangement

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Oxidative Cleavage with HIO4

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Preparation of Phenol(I)

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Preparation of Phenol(II)

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Properties of Phenols

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Reactions due to (-OH) group

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Claisen's Rearrangement

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Reaction with Conc. HNO3, Phthalic Anhydride

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Reaction of Phenols with dil. HNO3

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Reimer-Tiemann and Kolbe's Schmidt Reactions

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Williamson's Ether Synthesis

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Aldehydes, Ketones and Carboxylic Acids

Preparation of Aldehydes and Ketones

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Preparation of Aldehydes

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Preparation of Ketones

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Nucleophilic Addition Reaction

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Reduction and Oxidation Reaction

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Intermolecular Aldol Condensation

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Intramolecular Aldol Condensation

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Intermolecular Cannizzaro Reaction

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Intramolecular Cannizzaro Reaction

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Methods of Preparation of Carboxylic Acids

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Chemical Properties of Carboxylic Acids

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Acidity in Carboxylic Acids

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Perkin's Condensation

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Reformatsky Reaction

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Benzoin Condensation, Benzil-Benzilic Acid Rearrangement

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Organic Compounds Containing Nitrogen

Methods of Preparation of Amines

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Gabriel Phthalimide Synthesis

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Hoffmann Bromamide Reaction

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Special Case of Hoffmann Bromamide Reaction

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Test for Amines

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Carbylamine Test

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Alkylation and Acylation of Amines

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Reaction with NaNO2 + HCl

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Basicity of Aliphatic Amines

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Azo-Coupling Reaction

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Properties of Nitrocompounds and Mulliken Barker Test

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Preparation of Aromatic Nitrocompounds

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Basicity of Aromatic Amines

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Biomolecules

Carbohydrates

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Cyclic Structure of Glucose(Haworth Projection)

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Cyclic Structure of Fructose(Haworth Projection)

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Anomers, Epimers, Mutarotation

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Evidence for Open Chain Structure of Glucose

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Evidence for Ring Structure of Glucose

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Chemical Properties of Glucose

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Diasaccharides and Polysaccharides

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Amino Acids - 1

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Amino Acids - 2

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Amino Acids - 3

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Proteins

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Enzymes

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Vitamins

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