Chapter 7 · Class 11-12 & JEE/NEET
Chemical Bonding & Molecular Structure
56 topics in 13 parts
Key ideas
Diagnostic Comparison & Property Matrix
| Parameter / Feature | Standard State / Condition A | Altered State / Condition B |
|---|---|---|
| Driving Force | Thermodynamic control (more stable product) | Kinetic control (lower activation barrier) |
| Solvent Dependency | Polar protic solvent stabilizes charge separation | Polar aprotic solvent accelerates bare nucleophilicity |
| Temperature Influence | High temperatures favor elimination / endothermic | Mild temperatures favor addition / exothermic |
| Common Pitfall | Overlooking rearrangement or stereochemical inversion | Neglecting boundary limits or stoichiometric coefficients |
All 56 topics in Chemical Bonding & Molecular Structure
Chemical Bond Formation & Octet Rule
- Lewis Approach & Lewis Dot Structures
- Concept of Electrovalent Bond
- Concept of Covalent Bond
- Exceptions to Octet Rule
- Formal Charge Calculation
Ionic Bonding & Lattice Enthalpy
- Formation of Ionic Bond
- Lattice Enthalpy & Born-Haber Cycle
- Properties of Ionic Compounds
- Melting Point & Thermal Stability
- Solubility of Ionic Compounds
- Acidic & Basic Nature of Oxides
Polarity of Bonds & Dipole Moment
- Polar & Non-Polar Covalent Bonds
- Dipole Moment & Vector Addition
- Applications of Dipole Moment
- Percentage Ionic Character
Fajans' Rules & Covalent Character of Ionic Bonds
- Polarizing Power & Polarizability
- Fajans' Rules
- Consequences of Polarization
Valence Shell Electron Pair Repulsion (VSEPR) Theory
- Postulates of VSEPR Theory
- Molecular Geometry Based on Electron Pairs
- Effect of Lone Pairs on Molecular Geometry
- Effect of Electronegativity on Geometry
- Drago's Rule
Valence Bond Theory & Orbital Overlap
- Postulates of Valence Bond Theory
- Orbital Overlap Concept
- Sigma & Pi Bonds
- pπ-pπ & pπ-dπ Bonding
- Bridge Bonding & Multicenter Bonding
Hybridization & Molecular Geometry
- Salient Features of Hybridization
- Calculation of Steric Number
- Hybridization in Ethane, Ethene & Ethyne
- Hybridization Involving d Orbitals
- Examples of Hybridization
Resonance Structures
- Concept of Resonance & Canonical Forms
- Resonance Energy
- Formal Charge in Canonical Forms
Molecular Orbital Theory
- LCAO Method & Types of Molecular Orbitals
- Energy Level Diagrams for Molecular Orbitals
- Homonuclear Diatomic Molecules
- Heteronuclear Diatomic Molecules
- Bond Order, Bond Length & Bond Energy
- Magnetic Properties & Molecular Stability
Hydrogen Bonding
- Intermolecular & Intramolecular H-Bonding
- Applications & Consequences of H-Bonding
Weak Intermolecular Forces
- Van der Waals Forces
- Dipole-Dipole & Dipole-Induced Dipole Interactions
- London Dispersion Forces
- Ion-Dipole Interactions
Metallic Bonding & Properties
- Free Electron Theory
- Band Theory of Metals
- Metallic Properties & Crystal Structures
Solid State Crystal Structures & Defects
- Radius Ratio Rules
- Close Packing in Crystals
- Structures of AX & AX₂ Ionic Compounds
- Layer Structures
- Stoichiometric & Non-Stoichiometric Defects