Melting Points & Electrical Conductivity of Ionic Compounds | Class 10 Chemistry Ch 18 | PTB 2026

Melting Points of Ionic Compounds & Conduction of Electricity by Ionic Compounds | Chapter 18 Salts | Class 10 Chemistry | PTB 2026 In this lecture, we will study two important properties of ionic compounds according to the Punjab Textbook Board (PTB) Chemistry Book 2026 for Class 10 / Matric Chemistry, Chapter 18 – Salts. We will understand why ionic compounds generally have high melting points and when ionic compounds conduct electricity. The concepts are explained with simple reasoning so students can understand the role of electrostatic forces, ions, and mobility of ions. 📚 Topics Covered in This Lecture: 🔹 What are ionic compounds? 🔹 Ionic bonding and electrostatic forces 🔹 Why ionic compounds have high melting points 🔹 Strong attraction between positive and negative ions 🔹 Effect of ionic lattice on melting point 🔹 Melting and boiling points of ionic compounds 🔹 Conduction of electricity by ionic compounds 🔹 Why solid ionic compounds do not conduct electricity 🔹 Why molten ionic compounds conduct electricity 🔹 Why aqueous solutions of ionic compounds conduct electricity 🔹 Movement of ions and electrical conductivity 🔹 Examples of ionic compounds 🔹 Solid vs molten vs aqueous ionic compounds 🔹 Important board-exam concepts 🔹 Important MCQ points 🔹 Easy tricks to remember the concepts 🧠 Easy Concept High melting point: Ionic compounds contain oppositely charged ions held together by strong electrostatic forces, so a large amount of energy is required to separate the ions. Electrical conductivity: Solid ionic compound → ❌ Does not conduct because ions are fixed in their positions. Molten ionic compound → ✅ Conducts because ions are free to move. Aqueous solution → ✅ Conducts because ions are free to move through the solution. 🎯 This lecture is specially useful for Class 10 Chemistry students, Matric students, Punjab Board students, and students preparing for PTB 2026 Chemistry examinations. 📌 Chapter: 18 – Salts 📌 Topics: Melting Points of Ionic Compounds + Conduction of Electricity 📌 Class: 10th / Matric 📌 Subject: Chemistry 📌 Book: PTB Chemistry 2026 🔔 Subscribe to Chem With Sammer for more Class 9th & 10th Chemistry lectures, conceptual explanations, MCQs, Short Questions, CRQs, and board-exam preparation. #IonicCompounds #IonicCompoundsClass10 #MeltingPointOfIonicCompounds #MeltingPoints #IonicCompoundsMeltingPoint #ElectricalConductivity #ConductionOfElectricity #IonicCompoundsConductElectricity #IonicBonding #IonicBond #ElectrostaticForces #Ions #MoltenIonicCompounds #AqueousSolution #Class10Chemistry #10thClassChemistry #MatricChemistry #ChemistryClass10 #Chapter18Salts #SaltsClass10 #PTB2026 #PTBChemistry2026 #PunjabBoard #10thChemistry2026 #ChemistryLecture #BoardExamPreparation #ChemWithSammer