Class 10 Chemistry Chapter 16 Lecture 4 | 16.5 Oxidation-Reduction Reactions | PECTAA 2026

Welcome to Dr. Asif Ali Math Lectures! In this lecture, we study Class 10 Chemistry (New PECTAA Punjab Textbook 2026), Chapter 16: Electrochemistry, focusing on Topic 16.5 – Oxidation-Reduction (Redox) Reactions. This lesson explains the concept of oxidation and reduction occurring simultaneously, the identification of oxidizing and reducing agents, and the use of oxidation numbers to determine which substances are oxidized and reduced. You will also learn how potassium permanganate (KMnO₄) acts as a powerful oxidizing agent in acidic medium, how it oxidizes oxalic acid and potassium iodide (KI), and why these reactions produce characteristic color changes. The lecture includes balanced chemical equations, oxidation number calculations, electron transfer, and solved textbook examples to make the topic easy to understand. This video is specially prepared according to the new PECTAA Class 10 Chemistry syllabus (Session 2026–27) and is highly useful for Board Exams, School Tests, Concept Building, MDCAT foundation, and entry test preparation. Topics Covered What are Oxidation-Reduction (Redox) Reactions? Oxidation and Reduction using Oxidation Numbers Oxidizing Agent and Reducing Agent KMnO₄ as an Oxidizing Agent Oxidation of Oxalic Acid Oxidation of Potassium Iodide (KI) Electron Transfer in Redox Reactions Color Changes in Redox Reactions Solved Textbook Examples Quick Check MCQs and Board Preparation If this lecture helps you, Like, Share, and Subscribe to the channel for complete Class 10 Chemistry (PECTAA 2026) lectures with conceptual explanations, solved exercises, MCQs, and board exam preparation. #Class10Chemistry #PECTAA2026 #Electrochemistry #RedoxReactions #OxidationReduction #PunjabBoard #ChemistryLecture