Some basic concepts in chemistry Topics - IIT JEE Syllabus

1

Matter and its nature

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📌 Key FormulaMatter has mass and occupies space.

2

Dalton's atomic theory

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📌 Key FormulaPostulates: elements composed of atoms, atoms indestructible, etc.

3

Concept of atom, molecule, element and compound

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📌 Key FormulaBasic definitions.

4

Physical quantities and their measurements

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📌 Key FormulaSI units, fundamental and derived quantities.

5

Precision and accuracy, significant figures

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📌 Key FormulaRules for significant figures.

6

S.I. Units

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📌 Key FormulaSeven base units.

7

Laws of chemical combination

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📌 Key FormulaLaw of conservation of mass, law of definite proportions, law of multiple proportions.

8

Atomic and molecular masses

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📌 Key FormulaAtomic mass unit, average atomic mass.

9

Mole concept, molar mass

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📌 Key Formulan = m/M = N/N_A = V/22.4 L (at STP)

10

Percent composition formula

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📌 Key Formula% element = (mass of element in compound / molar mass) × 100

11

Empirical formula & Molecular formula

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📌 Key FormulaEmpirical formula: simplest ratio, Molecular formula = n × Empirical formula, n = molar mass / empirical formula mass

12

Chemical equations and stoichiometry

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📌 Key FormulaBalancing equations, mole ratios.

13

Concept of atoms and molecules

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📌 Key FormulaBasic building blocks.