Atomic Structure
Bohr's model of hydrogen atom, energy of levels
medium • 1 min read
Quantum numbers and shapes of atomic orbitals
medium • 2 min read
Electronic configuration of elements up to atomic number 36
medium • 3 min read
Wave-particle duality, de Broglie relation
medium • 4 min read
Heisenberg's uncertainty principle
medium • 5 min read
Chemical Bonding
VSEPR theory and hybridization (sp, sp2, sp3, dsp2, d2sp3)
medium • 1 min read
Molecular orbital theory for homonuclear diatomic molecules
medium • 2 min read
Hydrogen bonding and its effects on physical properties
medium • 3 min read
Dipole moment and ionic character of covalent bonds
medium • 4 min read
Lattice enthalpy and Born-Haber cycle
medium • 5 min read
Chemical Thermodynamics
First law: Internal energy, enthalpy, and work
medium • 1 min read
Hess's law and enthalpy of various processes
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Entropy and second law: Spontaneity criteria
medium • 3 min read
Gibbs free energy and its relationship with equilibrium
medium • 4 min read
Third law of thermodynamics and absolute entropy
medium • 5 min read
Chemical Equilibrium
Law of mass action and equilibrium constant (Kc, Kp)
medium • 1 min read
Le Chatelier's principle: Effect of concentration, P, and T
medium • 2 min read
Ionic equilibrium: pH, buffer solutions, and solubility
medium • 3 min read
Salt hydrolysis and Henderson equation
medium • 4 min read
Common ion effect in qualitative analysis
medium • 5 min read
Electrochemistry
Electrolysis and Faraday's laws
medium • 1 min read
Galvanic cells, EMF, and standard electrode potentials
medium • 2 min read
Nernst equation and its applications
medium • 3 min read
Conductivity, molar conductivity, and Kohlrausch's law
medium • 4 min read
Batteries, fuel cells, and corrosion processes
medium • 5 min read
Chemical Kinetics
Rate of reaction and its dependence on T, P, and catalyst
medium • 1 min read
Order and molecularity of reactions
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Integrated rate expressions for zero and first order
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Collision theory and activation energy
medium • 4 min read
Arrhenius equation and k vs T plot
medium • 5 min read
Solid State
Types of solids: Crystalline and amorphous
medium • 1 min read
Unit cells, Packing efficiency, and density
medium • 2 min read
Bragg's law and X-ray diffraction
medium • 3 min read
Point defects in crystals: Schottky and Frenkel
medium • 4 min read
Electrical and magnetic properties of solids
medium • 5 min read
Solutions
Raoult's law and ideal/non-ideal solutions
medium • 1 min read
Colligative properties: Vp lowering, BP elevation
medium • 2 min read
FP depression and osmotic pressure
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Van't Hoff factor and degree of dissociation
medium • 4 min read
Solubility of gases in liquids: Henry's law
medium • 5 min read
Surface Chemistry
Adsorption isotherms (Freundlich and Langmuir)
medium • 1 min read
Catalysis: Enzymes and heterogeneous catalysts
medium • 2 min read
Colloids: Preparation, properties (Tyndall, Brownian)
medium • 3 min read
Emulsions and gels: Types and applications
medium • 4 min read
Micelles and cleansing action of soaps
medium • 5 min read
Inorganic Chemistry - Metallurgy
Principles of extraction of metals (Fe, Cu, Zn, Al)
medium • 1 min read
Concentration of ores: Froth flotation and leaching
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Thermodynamic principles: Ellingham diagrams
medium • 3 min read
Electrolytic refining and zone refining
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Oxide and sulphide ore processing
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S-Block Elements
General periodic trends of alkali and alkaline earth metals
medium • 1 min read
Preparation and properties of important compounds (NaOH, Na2CO3)
medium • 2 min read
Biological importance of Magnesium and Calcium
medium • 3 min read
Anomalous behavior of Lithium and Beryllium
medium • 4 min read
Solubility and thermal stability of sulphates/carbonates
medium • 5 min read
P-Block Elements (Group 13 & 14)
P-Block Elements (Group 15 to 18)
D and F Block Elements
Transition elements: Metallic character, Alloy formation
medium • 1 min read
Oxidation states and catalytic properties
medium • 2 min read
Preparation and properties of K2Cr2O7 and KMnO4
medium • 3 min read
Lanthanoid contraction and its consequences
medium • 4 min read
Comparison of Actinoids and Lanthanoids
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Coordination Compounds
IUPAC nomenclature and Werner's theory
medium • 1 min read
Valence Bond Theory and Crystal Field Theory
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Isomerism: Structural and stereoisomerism
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Stability of coordination compounds and ligands
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Importance in biological systems and analysis
medium • 5 min read
Organic Chemistry - Basic Principles
Inductive, electromeric, resonance and hyperconjugation effects
medium • 1 min read
IUPAC nomenclature of complex organic molecules
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Stability of reactive intermediates: Carbocations, Radicals
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Nucleophiles and electrophiles: Classification
medium • 4 min read
Acidic and basic strength are comparative studies
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Purification and Characterization
Techniques like Chromatography and Distillation
medium • 1 min read
Qualitative and quantitative analysis of elements (Lassaigne)
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Empirical and molecular formula from percentages
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Spectroscopic tools in organic analysis (Introductory)
medium • 4 min read
Detection of functional groups
medium • 5 min read
Hydrocarbons - I (Alkanes & Alkenes)
Hydrocarbons - II (Alkynes & Aromatic)
Acidity of alkynes and addition reactions
medium • 1 min read
Structure of benzene and Huckel's rule for aromaticity
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Electrophilic substitution: Nitration and Alkylation
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Directive influence of functional groups
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Coal tar and petroleum as sources
medium • 5 min read
Haloalkanes and Haloarenes
SN1 and SN2 mechanisms of substitution
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Elimination reactions (E1, E2) and competition with substitution
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Nucleophilic substitution in Haloarenes: Benzyne mechanism
medium • 3 min read
Grignard reagent and its synthetic applications
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Stereochemical aspects of substitution
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Alcohols, Phenols and Ethers
Aldehydes and Ketones
Carboxylic Acids and Derivatives
Organic Compounds Containing Nitrogen
Basicity of Amines and effect of substituents
medium • 1 min read
Gabriel Phthalimide and Hoffmann Bromamide reactions
medium • 2 min read
Diazonium salts: Coupling and Sandmeyer reactions
medium • 3 min read
Identification of Primary, Secondary, and Tertiary amines
medium • 4 min read
Nitro compounds: Preparation and reduction
medium • 5 min read
Biomolecules
Polymers and Materials
Practical Organic Chemistry
Detection of Nitrogen, Sulfur, and Halogens
medium • 1 min read
Functional group tests and identification
medium • 2 min read
Preparation of acetanilide and iodoform
medium • 3 min read
Chemistry of silver mirror and Fehling's test
medium • 4 min read
Paper and column chromatography (Experimental)
medium • 5 min read