11th NCERT Chemistry Chapter 4
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– Kössel-Lewis approach to chemical bonding
– Octet rule and its limitations; drawing Lewis structures of simple molecules
– Formation of different types of bonds
– VSEPR theory and predicting the geometry of simple molecules
– Valence bond approach for the formation of covalent bonds
– Predicting the directional properties of covalent bonds
– Different types of hybridization involving s, p, and d orbitals; drawing shapes of simple covalent molecules
– Molecular orbital theory of homonuclear diatomic molecules
– Concept of hydrogen bond【4:0†source】
– Lattice Enthalpy in ionic solids; its role in stability
– Bond parameters including bond length
– Introduction to the VSEPR model and its refinement by Nyholm and Gillespie in 1957
– Molecular orbital theory: describing bonding in terms of the combination and arrangement of atomic orbitals
– Formation of hydrogen bonds and their effects on compound properties【4:4†source】
What is the bond order of the hydrogen molecule (H2)?
Explain the significance of the plus and minus signs in representing the orbitals.
Define hydrogen bond and compare its strength to van der Waals forces.
Explain the conditions required for the linear combination of atomic orbitals to form molecular orbitals.
What is meant by bond pairs and lone pairs of electrons? Provide an example of each type.
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