Class notes
Ch-Some basic concepts of chemistry. Class 11 handwritten notes for JEE and NEET
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The chapter “Some Basic Concepts of Chemistry” introduces the fundamental principles that form the foundation of chemistry. It explains the nature and classification of matter into elements, compounds, and mixtures, and describes important laws of chemical combination such as the Law of Conservation of Mass proposed by Antoine Lavoisier, the Law of Definite Proportions by Joseph Proust, and the Law of Multiple Proportions by John Dalton. It also discusses Dalton’s atomic theory, which states that matter is made up of atoms that combine in simple whole-number ratios and are rearranged during chemical reactions without being created or destroyed.
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Written for
- Institution
- Secondary school
- Course
- Chemistry
- School year
- 4
All documents for this subject (451)
Document information
- Uploaded on
- February 22, 2026
- Number of pages
- 92
- Written in
- 2025/2026
- Type
- Class notes
- Professor(s)
- H.c verma
- Contains
- All classes
Subjects
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handwritten notes
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for jee
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for neet
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easy explanation
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class 11
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