29 - Bond Length | Comparison of Bond Length | Chemical Bonding | JEE Mains & Advanced | NEET

Welcome to Lecture 29 of Chemical Bonding. In this lecture, we will develop a complete conceptual understanding of Bond Length and learn how Electronegativity, Back Bonding, Resonance and Bond Order affect the bond length of different compounds and ions. We will also learn how to compare bond lengths in important species such as CO, CO₂ and CO₃²⁻, followed by a detailed comparison of SO₃, SO₃²⁻ and SO₄²⁻. The lecture also covers the comparison of O–O bond lengths in O₂, O₃ and H₂O₂, helping you build a strong understanding of bond order and its relationship with bond length. The lecture also includes an important JEE 2025 PYQ based on the maximum covalency of a non-metallic Group 15 element and the weakest E–E bond. These concepts and comparisons are highly useful for JEE Mains, JEE Advanced, NEET and Olympiad-level Chemistry preparation. This lecture is part of the Chemical Bonding Zero to Advanced Series by HP Sir, where concepts are explained from the basic level to advanced problem-solving with important examples, comparisons and previous year questions. bond length, bond length chemistry, bond length and bond order, relation between bond order and bond length, relation between electronegativity and bond length, effect of electronegativity on bond length, effect of back bonding on bond length, effect of resonance on bond length, bond length comparison, CO CO2 CO3 2- bond length comparison, SO3 SO3 2- SO4 2- bond length comparison, O2 O3 H2O2 O-O bond length comparison, chemical bonding, chemical bonding JEE, chemical bonding NEET, chemical bonding JEE Mains, chemical bonding JEE Advanced, chemical bonding zero to advanced, JEE 2025 chemistry PYQ, maximum covalency Group 15, weakest E-E bond, inorganic chemistry, JEE chemistry, NEET chemistry, HP Sir chemistry, Hemant Phulwari chemistry, bond order comparison, resonance and bond length, back bonding and bond length #HPsir #HemantPhulwari #BestChemistryTeacher #BestPhysicalChemistryTeacher #ChemicalBonding #BondLength #BondOrder #Electronegativity #BackBonding #Resonance #JEE #JEEMains #JEEAdvanced #NEET #Olympiad #JEE2025 #PYQ #Chemistry #InorganicChemistry #JEEChemistry #NEETChemistry #ChemicalBondingJEE #ChemicalBondingNEET #BondLengthComparison #BondOrderAndBondLength #ResonanceEffect #BackBondingEffect #JEEPreparation #NEETPreparation #ChemistryLecture TimeStamp 0:00 – Introduction 0:20 – Relation between Electronegativity and Bond Length 4:20 – How Backbonding Affects Bond Length 5:30 – How Resonance Affects Bond Length 7:45 – Relation between Bond Order and Bond Length 11:00 – Compare Bond Length: CO, CO₂ and CO₃²⁻ (Carbonate Ion) 11:50 – Compare Bond Length: SO₃, SO₃²⁻ and SO₄²⁻ 14:50 – Compare O–O Bond Length in O₂, O₃ and H₂O₂ 21:20 – JEE 2025 PYQ: Maximum Covalency of a Non-Metallic Group 15 Element E with Weakest E–E Bond Option 1: 5 Option 2: 3 Option 3: 6 Option 4: 4 📲 Join My Telegram Channel for discussions & Important Questions: 👉 https://t.me/hpsir_chemistry 🌟 Dear Students, let's stay connected! 📸 Instagram   / hemant_phulwari1   📘 Facebook   / officialhemantphulwari   🌐 Quora https://www.quora.com/profile/Hemant-...