Skip to main content
Chapter 4ChemistryCBSE Class 11

Chemical Bonding and Molecular Structure

Chemical Bonding and Molecular Structure is Chapter 4 of NCERT Class 11 Chemistry. The chapter covers Kössel-Lewis Approach to Chemical Bonding, Ionic or Electrovalent Bond, Bond Parameters, The Valence Shell Electron Pair Repulsion (VSEPR) Theory, and more. Use this public guide to revise the official topic structure before asking Lerno for step-by-step help.

9 topicsChapter 4 of 9
Study with AI

Topics covered

9 sections
01

Kössel-Lewis Approach to Chemical Bonding

IntroductionOctet RuleCovalent BondLewis Representation of Simple Molecules (the Lewis Structures)Formal ChargeLimitations of the Octet Rule
02

Ionic or Electrovalent Bond

IntroductionLattice Enthalpy
03

Bond Parameters

IntroductionBond LengthBond AngleBond EnthalpyBond OrderResonance StructuresPolarity of Bonds
04

The Valence Shell Electron Pair Repulsion (VSEPR) Theory

Introduction
05

Valence Bond Theory

IntroductionOrbital Overlap ConceptDirectional Properties of BondsOverlapping of Atomic OrbitalsTypes of Overlapping and Nature of Covalent BondsStrength of Sigma and Pi Bonds
06

Hybridisation

IntroductionTypes of HybridisationOther Examples of sp3, sp2 and sp HybridisationHybridisation of Elements Involving d Orbitals
07

Molecular Orbital Theory

IntroductionFormation of Molecular Orbitals: Linear Combination of Atomic Orbitals (LCAO)Conditions for the Combination of Atomic OrbitalsTypes of Molecular OrbitalsEnergy Level Diagram for Molecular OrbitalsElectronic Configuration and Molecular Behaviour
08

Bonding in Some Homonuclear Diatomic Molecules

Introduction
09

Hydrogen Bonding

IntroductionCause of Formation of Hydrogen BondTypes of H-Bonds

Key concepts

Kössel-Lewis Approach to Chemical BondingIonic or Electrovalent BondBond ParametersThe Valence Shell Electron Pair Repulsion (VSEPR) TheoryValence Bond TheoryHybridisationMolecular Orbital TheoryBonding in Some Homonuclear Diatomic MoleculesIntroductionOctet Rule

Practice questions

Frequently asked

What is covered in Chemical Bonding and Molecular Structure?

Chemical Bonding and Molecular Structure is Chapter 4 in NCERT Class 11 Chemistry. The verified chapter structure includes Kössel-Lewis Approach to Chemical Bonding, Ionic or Electrovalent Bond, Bond Parameters, The Valence Shell Electron Pair Repulsion (VSEPR) Theory, Valence Bond Theory.

How should I revise Chemical Bonding and Molecular Structure?

Revise the chapter topic by topic: start with Kössel-Lewis Approach to Chemical Bonding, Ionic or Electrovalent Bond, Bond Parameters, then practice questions that mix definitions, examples, and application steps.

Can I use Lerno for Class 11 Chemistry questions?

Yes. Lerno is built for CBSE students and uses NCERT-grounded context so students can ask for explanations, practice prompts, and step-by-step guidance for this chapter.

Study prompts

1

Explain Kössel-Lewis Approach to Chemical Bonding from Chemical Bonding and Molecular Structure and give one NCERT-style example or practice step.

2

Explain Ionic or Electrovalent Bond from Chemical Bonding and Molecular Structure and give one NCERT-style example or practice step.

3

Explain Bond Parameters from Chemical Bonding and Molecular Structure and give one NCERT-style example or practice step.

4

Explain The Valence Shell Electron Pair Repulsion (VSEPR) Theory from Chemical Bonding and Molecular Structure and give one NCERT-style example or practice step.

5

Explain Valence Bond Theory from Chemical Bonding and Molecular Structure and give one NCERT-style example or practice step.

6

Explain Hybridisation from Chemical Bonding and Molecular Structure and give one NCERT-style example or practice step.

Explore this chapter

Practice QuestionsChapter-wise NCERT-aligned questionsSolutions GuideStep-by-step approach per topicChapter ExplanationTopic map for structured revision

AI Tutor · Free

Study “Chemical Bonding and Molecular Structure” with Lerno

Get instant explanations, solved examples, and NCERT-aligned practice — grounded in your textbook, not generic AI answers.

Open Lerno — it's free