📘 Class 11 – Chemistry

Chapter 01: Some Basic Concepts of Chemistry 💊

📌 PART – 1

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This chapter lays the foundation of Chemistry, helping students understand matter, its properties, and basic scientific principles used in chemistry.

📌 This chapter is divided into 4 parts. Make sure to read the next blog after completing this one!

📚 Contents with Explanation:

✅ Chemistry & Its Importance

Chemistry is the study of matter—its properties, structure, and interactions. It’s vital in medicine, materials, agriculture, and daily life.

✅ States of Matter

Matter exists in:

Solids: Fixed shape and volume
Liquids: Fixed volume but not shape
Gases: Neither fixed shape nor volume

✅ Classification of Matter

Pure Substances: Elements and compounds with consistent composition
Mixtures: Physical combinations of two or more substances

✅ Properties of Matter

Physical Properties: Observed without altering substance identity (e.g., color, density)
Chemical Properties: Observed during reactions (e.g., flammability)

✅ Measurements in Chemistry

Involves quantities like:

Mass & Weight
Volume
Density
Temperature in °C, °F, and Kelvin

✅ Uncertainty in Measurements

All measurements carry a degree of uncertainty due to limitations of instruments or human error.

✅ Significant Figures

They reflect the precision of a measurement. Learning the rules ensures accuracy in calculations.

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🔜 What’s Next?

➡️ Move on to Part 2 of this chapter for topics like Laws of Chemical Combination and Mole Concept.

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Some Basic concepts of chemistry (Part-1) || Class-11 || Chemistry Handwritten Notes