Class 9 Chemistry Chapter 1 – Basic Principles (Solved Notes)
π Introduction to Chapter 1: Basic Principles
This chapter introduces the fundamentals of chemistry: matter, atoms, molecules, laws of chemical combination, and SI units. It lays the foundation for future concepts.
π Key Topics Covered:
- Matter and Its Classification
- Atomic Structure Basics
- Law of Conservation of Mass
- Law of Constant Composition
- SI Units and Scientific Notation
π What’s Inside the PDF?
- ✅ Solved Definitions (Urdu + English)
- ✅ Short and Long Questions
- ✅ MCQs with Correct Answers
- ✅ Easy-to-understand Numericals
✅ Prepared by Mujahid Hussain
These notes are carefully prepared by Mujahid Hussain, Study Pool Certified, and verified by M Usman (MSc Chemistry). Ideal for weak students and Urdu-medium learners.
π₯ Download Chapter 1 Solved PDF
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π Related Notes
➡️ Next Chapter: Chapter 2 – Structure of Atom | Solved Notes


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