Class 11 Chemistry Chapter 4 Chemical Bonding and Molecular Structure – Revision Notes

Quick revision notes for Class 11 Chemistry Chapter 4 (Chemical Bonding and Molecular Structure). These Class 11 Chemistry Chapter 4 notes are ideal for quick revision just before exams.

Bond Types

• Ionic: electron transfer.
• Covalent: electron sharing; octet rule.

Shape and Hybridization

• VSEPR theory predicts shape via electron pair repulsion.
• sp (linear), sp² (trigonal planar), sp³ (tetrahedral).

Molecular Orbital Theory

• Bond order=½(bonding−antibonding electrons).

Hydrogen Bonding

• Between H (bonded to N/O/F) and an electronegative atom; explains water’s high boiling point.

One-Line Summary

Chemical bonding theories (ionic, covalent, VSEPR, hybridization, and molecular orbital theory) explain how and why atoms combine, and predict the shape, stability, and properties of the resulting molecules.

Written by Satish

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