Topic 20.5 Water Supply Treatment | Class 10 Chemistry Ch 20 Lecture 4 | PECTAA

📘 Class 10 Chemistry | Chapter 20: Water | Topic 20.5 | Lecture 4 Treatment of Domestic Water Supply explained step by step according to the PECTAA New Book 2026 syllabus for Punjab Board Matric students. Sir Faizan Tariq breaks down how impurities are removed from natural water through sedimentation, filtration, chlorination and removal of odours, so you can confidently answer board exam short questions and CRQs on this topic. ⏱️ TIMESTAMPS 00:00 Intro 00:36 Topic 20.5 Treatment of Domestic Water Supply 02:40 Types of Impurities 03:44 Treatments to remove the Impurities from water 04:19 Sedimentation 06:46 How sedimentation process works? / Write a note on sedimentation process? 08:11 Filtration 10:50 Chlorination 13:12 Removal of odours ✅ WHAT YOU WILL LEARN The three types of impurities present in natural water Why water from natural sources must be treated before domestic use How sedimentation removes suspended solids like sand and soil How filtration through sand and gravel layers traps finer particles How chlorination kills harmful bacteria and microbes in water How activated carbon removes tastes and odours from water Board-relevant short answer and CRQ style explanations for Topic 20.5 📋 ABOUT THIS LECTURE Chapter: 20 – Water Topic: 20.5 Treatment of Domestic Water Supply Lecture: 4 Class: 10th / Matric Syllabus: PECTAA New Book 2026, Punjab Board Instructor: Sir Faizan Tariq This lecture is part of our complete Class 10 Chemistry playlist covering every chapter and topic of the PECTAA New Book 2026 syllabus with clear board-focused explanations, diagrams and exam-oriented notes. 🎓 ADMISSIONS OPEN Faisal Public School 📍 Street #4, Kalar Colony, Opposite Power House, Samundri Road, Faisalabad 📞 0300-7663349 🔔 Subscribe to @faisalpublicschoool for more Class 10 Chemistry lectures covering every chapter of the PECTAA New Book 2026 syllabus, along with solved MCQs, short questions and CRQs. #Chemistry #Class10Chemistry #Chapter20Water #Topic205 #TreatmentOfWater #DomesticWaterSupply #PECTAA #PECTAANewBook2026 #PunjabBoard #MatricChemistry #FaizanTariq