Chemical Bonding and Molecular Structure, NCERT Grade 11 Chemistry belongs to Unit 4. Unit 4, Unit 4, Unit 6 and Unit 7 hold a weightage of 21 marks. This chapter deals with the relation between molecules, their structural representation and correlation. Understand KÖssel-Lewis approach to chemical bonding; explain the octet rule and its limitations, draw Lewis structures of simple molecules; explain the formation of different types of bonds; describe the VSEPR theory and predict the geometry of simple molecules; explain the valence bond approach for the formation of covalent bonds; predict the directional properties of covalent bonds; explain the different types of hybridisation involving s, p and d orbitals and draw shapes of simple covalent molecules; describe the molecular orbital theory of homonuclear diatomic molecules; explain the concept of hydrogen bond are the areas that the students will learn through this chapter.
Kössel-Lewis Approach to Chemical Bonding, Octet Rule, Covalent Bond, Lewis Representation of Simple Molecules (The Lewis Structures), Formal Charge, Limitations of the Octet Rule, Ionic or Electrovalent Bond, Lattice Enthalpy, Bond Parameters, Bond Length, Bond Angle, Bond Enthalpy, Bond Order, Resonance Structures, Polarity of Bonds, The Valence Shell Electron Pair Repulsion (VSEPR) Theory, Valence Bond Theory, Orbital Overlap Concept, Directional Properties of Bonds, Overlapping of Atomic Orbitals, Types of Overlapping and Nature of Covalent Bonds, Strength of Sigma and Pi Bonds, Hybridisation, Types of Hybridisation, other Examples of Sp3, Sp2 and Sp Hybridisation, Hybridisation of Elements Involving d Orbitals, Molecular Orbital Theory, Formation of Molecular Orbitals Linear Combination of Atomic Orbitals (Lcao), Conditions for the Combination of Atomic Orbitals, Types of Molecular Orbitals, Energy Level Diagram for Molecular Orbitals, Electronic Configuration and Molecular Behaviour, Bonding in some Homonuclear diatomic molecules, Hydrogen Bonding, Cause of Formation of Hydrogen Bond and Types of H-Bonds comprise the content of this chapter.
Get 100 percent accurate NCERT Solutions for Class 11 Chemistry Chapter 4 (Chemical Bonding and Molecular Structure) solved by expert Chemistry teachers. We provide solutions for questions given in Class 11 Chemistry text-book as per CBSE Board guidelines from the latest NCERT book for Class 11 Chemistry. The topics and sub-topics in Chapter 4 Chemical Bonding and Molecular Structure are given below.
Ex 4.1 - KOSSEL-LEWIS APPROACH TO CHEMICAL BONDING
Ex 4.1.1 - Octet Rule
Ex 4.1.2 - Covalent Bond
Ex 4.1.3 - Lewis Representation of Simple Molecules (the Lewis Structures)
Ex 4.1.4 - Formal Charge
Ex 4.1.5 - Limitations of the Octet Rule
Ex 4.2 - IONIC OR ELECTROVALENT BOND
Ex 4.2.1 - Lattice Enthalpy
Ex 4.3 - BOND PARAMETERS
Ex 4.3.1 - Bond Length
Ex 4.3.2 - Bond Angle
Ex 4.3.3 - Bond Enthalpy
Ex 4.3.4 - Bond Order
Ex 4.3.5 - Resonance Structures
Ex 4.3.6 - Polarity of Bonds
Ex 4.4 - THE VALENCE SHELL ELECTRON PAIR REPULSION (VSEPR) THEORY
Ex 4.5 - VALENCE BOND THEORY
Ex 4.5.1 - Orbital Overlap Concept
Ex 4.5.2 - Directional Properties of Bonds
Ex 4.5.3 - Overlapping of Atomic Orbitals
Ex 4.5.4 - Types of Overlapping and Nature of Covalent Bonds
Ex 4.5.5 - Strength of Sigma and pi Bonds
Ex 4.6 - HYBRIDISATION
Ex 4.6.1 - Types of Hybridisation
Ex 4.6.2 - Other Examples of sp3, sp2 and sp Hybridisation
Ex 4.6.3 - Hybridisation of Elements involving d Orbitals
Ex 4.7 - MOLECULAR ORBITAL THEORY
Ex 4.7.1 - Formation of Molecular Orbitals Linear Combination of Atomic Orbitals (LCAO)
Ex 4.7.2 - Conditions for the Combination of Atomic Orbitals
Ex 4.7.3 - Types of Molecular Orbitals
Ex 4.7.4 - Energy Level Diagram for Molecular Orbitals
Ex 4.7.5 - Electronic Configuration and Molecular Behaviour
Ex 4.8 - BONDING IN SOME HOMONUCLEAR DIATOMIC MOLECULES
Ex 4.9 - HYDROGEN BONDING
Ex 4.9.1 - Cause of Formation of Hydrogen Bond
Ex 4.9.2 - Types of H-Bonds.
We cover all exercises in the chapter given below:-
Chapter 4 - 40 Questions with Solutions.
Other than given exercises, you should also practice all the solved examples given in the book to clear your concepts on Chemical Bonding and Molecular Structure. Download the free PDF of Chapter 4 Chemical Bonding and Molecular Structure and take the print out to keep it handy for your exam preparation.