Class 10 Chemistry Chapter 20 Water Lecture 1 | Water & Purity of Water 20.1-20.2 | PECTAA 2026

📘 Class 10 Chemistry | Chapter 20 – Water | Lecture 1 | Topics 20.1 & 20.2 | PECTAA New Book 2026 Assalam-o-Alaikum Students! Welcome to Faisal Public School's Chemistry lecture series. In this video, Sir Faizan Tariq explains Topic 20.1 (Water & Test for Water) and Topic 20.2 (Purity of Water) from Chapter 20 of the PECTAA New Book 2026 syllabus for Punjab Board Matric students. ✅ WHAT YOU WILL LEARN ☑️ Importance of water and its applications in chemistry ☑️ Test for water using anhydrous copper(II) sulphate ☑️ Why the colour change from white to blue confirms water ☑️ Purity of water: boiling point and freezing point tests ☑️ Standard Temperature and Pressure (STP) explained ☑️ Important board-exam MCQs from Topics 20.1 & 20.2 ☑️ Quick Check 20.1 solved step by step ⏱️ TIMESTAMPS 00:00 Introduction 00:05 Chapter Importance 01:02 Chapter Overview 02:49 Topic 20.1 – Water 04:40 Applications of Identifying the Presence of Water 05:10 Test for Water (Anhydrous Copper Sulphate) 10:23 Topic 20.2 – Purity of Water 15:07 Important MCQ 16:40 What is Standard Temperature & Atmospheric Pressure (STP) 16:59 Quick Check 20.1 📋 ABOUT THIS LECTURE 📖 Chapter: 20 – Water 📍 Topics Covered: 20.1, 20.2 🎓 Class: 10th / Matric 📚 Board: Punjab Board (PECTAA New Book 2026) 👨‍🏫 Instructor: Sir Faizan Tariq 🏫 Institute: Faisal Public School, Faisalabad This lecture is designed for Punjab Board Class 10 students preparing for their 2026 board exams. Concepts are explained step by step with board-relevant MCQs and Quick Check questions to help students build a strong foundation in Chapter 20 (Water) before moving on to water treatment, pollutants, and fertilizers in upcoming lectures. 👉 Don't forget to Like, Share, and Subscribe for complete Class 10 Chemistry lectures, solved numericals, MCQs, short questions, and CRQs based on the PECTAA New Book 2026. 🏫 ADMISSIONS OPEN – Faisal Public School 📍 Address: Street #4, Kalar Colony, Opposite Power House, Samundri Road, Faisalabad 📞 Contact: 0300-7663349 📺 YouTube: @faisalpublicschoool #Chemistry10thClass #Chapter20Water #TestForWater #PurityOfWater #ClassTenChemistry #MatricChemistry #PunjabBoard #PECTAANewBook2026 #FaisalPublicSchool #FaizanTariq