Chemical Bonding and Molecular Structure Class 11 explains why atoms combine and how bonding affects molecular shape and properties. Start with electron counting, then connect structures with the ideas in your notes.
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A short revision checklist
- Lewis structures: count valence electrons, place bonds and lone pairs, and check formal charges where required.
- VSEPR: distinguish the arrangement of electron pairs from the shape of the molecule. Lone pairs affect shape and bond angles.
- Hybridisation and overlap: connect the model with geometry and identify sigma and pi bonds.
- Polarity and hydrogen bonding: use bond dipoles and molecular geometry together when explaining properties.
Test your understanding
- Draw the Lewis structures of NH3 and H2O. Explain their different shapes.
- Why can a molecule with polar bonds still be non-polar?
- How does hydrogen bonding influence boiling point?
Make a small table of molecule, Lewis structure, shape and hybridisation. Attempt the NCERT questions independently before checking the solutions PDF.
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