Thermal Decomposition of Carbonates & Nitrates | 12th Chemistry Chapter 17 Lecture 4 | New Book 2026

12th Class Chemistry New Book 2026 Chapter 17 – Lecture 4 In this lecture, Khuram Shahzad explains Thermal Decomposition of Carbonates and Nitrates in a simple, exam-oriented way according to the Punjab Textbook Board New Book 2026. Topics Covered: Thermal Decomposition Decomposition of Carbonates Decomposition of Nitrates Trend in Thermal Stability Chemical Equations Board MCQs & Short Questions Important Exam Points This lecture is specially designed for FSc Part 2, Class 12 Chemistry students preparing for Board Exams. 📚 Subject: Chemistry 🎓 Class: 12th Class 📖 Chapter: 17 🎥 Lecture: 4 👨‍🏫 By: Khuram Shahzad 📺 Channel: TKA Bosal Official 👉 Don't forget to Like, Share, Comment & Subscribe for complete Chemistry lectures.​12th Class Chemistry New Book 2026 | Chapter 17 | Lecture 4: Thermal Decomposition of Carbonates & Nitrates ​Welcome back to the lecture series for the new 12th Class Chemistry textbook (2026 Edition)! In this lecture, we dive deep into Chapter 17, Lecture 4, focusing on the Thermal Decomposition of Carbonates and Nitrates. ​Understanding how temperature affects these compounds is crucial for your board exams. We break down the trends down the group, writing balanced chemical equations, and explaining why certain compounds decompose easily while others require extreme heat. ​🔍 What You Will Learn in This Lecture: ​Introduction to Thermal Decomposition: What happens when compounds break down due to heat. ​Decomposition of Group 1 & Group 2 Carbonates: Why sodium carbonate is stable but calcium carbonate decomposes into CaO and CO_2. ​Decomposition of Nitrates: Comparing the products of alkali metal nitrates vs. alkaline earth metal nitrates (Evolution of NO_2 and O_2 gases). ​Periodic Trends & Stability: Understanding the role of ionic radius, charge density, and polarization (Fajans' Rules) in thermal stability. ​Exam-Style Questions: How to write complete reactions and justify stability trends for full marks. ​📚 Timestamps (Optional but Recommended) ​0:00 – Introduction to Lecture 4 ​1:30 – Thermal Stability Trends Explained ​4:15 – Decomposition of Metal Carbonates (Group I vs Group II) ​8:45 – Decomposition of Metal Nitrates & Key Reactions ​13:20 – Conceptual Questions & Board Exam Tips ​📌 About This Channel ​On this channel, we provide comprehensive, step-by-step video lectures for Intermediate (FSc / ICS) Chemistry, Physics, and Mathematics based on the latest single national curriculum and updated textbooks. ​🔔 Subscribe for more simplified science lectures. ​💬 Drop your questions in the comments section below—I will reply to help you out! ​👍 Like and Share this video with your classmates to support free quality education! ​#12thClassChemistry #ChemistryNewBook2026 #ThermalDecomposition #InorganicChemistry #InterPart2 #FScChemistry #ChemistryLectures #Chapter17