1st Year Chemistry New Book 2025|Chapter 3 Chemical Bonding Lecture 7| Dipole Moment & Bond Polarity

Welcome to Science Teaching Zone 🌟 In this lecture of FSc 1st Year Chemistry (New Book 2025), Chapter 3: Chemical Bonding – Lecture 7, we will explore the important concepts of Dipole Moment and Bond Polarity. 🔹 Bond Polarity arises due to the unequal sharing of electrons between atoms of different electronegativities. This makes one end of the molecule slightly positive (δ⁺) and the other slightly negative (δ⁻). 🔹 Dipole Moment is the quantitative measure of bond polarity. It depends on: The magnitude of charge separation. The distance between the charges. The geometry of the molecule. In this lecture, you will learn: ✅ What is bond polarity? ✅ How electronegativity difference creates partial positive and negative charges. ✅ Definition and unit of dipole moment. ✅ Relation between molecular geometry and dipole moment. ✅ Why symmetrical molecules like BeCl₂, CCl₄, BF₃ have zero dipole moment. ✅ Why molecules like HCl, H₂O, SO₂ have nonzero dipole moment. ✅ Importance of dipole moment in predicting molecular polarity. This topic is very important for understanding molecular structure, polarity, solubility, and reactivity in chemistry. Don’t miss this lecture as it will help you in both conceptual clarity and exam preparation. --- 🔖 Hashtags #ScienceTeachingZone #FScChemistry2025 #1stYearChemistry #ChemicalBonding #DipoleMoment #BondPolarity #Electronegativity #MolecularPolarity #ChemistryLecture #PunjabBoardChemistry #Class11Chemistry #ChemistryNewSyllabus2025 #FScLecture #ChemistryMadeEasy