Topics
Some Basic Concepts of Chemistry
Introduction to Analytical Chemistry
- Introduction of Analytical Chemistry
- Analysis
- Mathematical Operation and Error Analysis
- Determination of Molecular Formula
- Chemical Reactions and Stoichiometric Calculations
- Limiting Reagent
- Concentration of a Solution
- Use of Graph in Analysis
Basic Analytical Techniques
- Introduction of Some Analytical Techniques
- Purification of Solids
- Crystallisation Method
- Fractional Crystallization
- Simple Distillation Method
- Solvent Extraction
- Chromatography Method
- Chromatography Method > Adsorption Chromatography
- Chromatography Method > Partition Chromatography
Structure of Atom
- Subatomic Particles
- Atomic Number and Mass Number
- Isotopes
- Drawbacks of Rutherford Atomic Model
- Bohr’s Atomic Model
- Bohr’s Model for Hydrogen Atom
- Quantum Mechanical Model of Atom
Chemical Bonding
- Concept of Chemical Bonding
- Kossel-lewis Approach to Chemical Bonding - Octet Rule
- Kossel and Lewis Approach to Chemical Bonding
- Kossel-lewis Approach to Chemical Bonding - Formal Charge
- Kossel-lewis Approach to Chemical Bonding - Limitations of the Octet Rule
- Valence Shell Electron Pair Repulsion Theory (VSEPR)
- Valence Bond Theory
- Molecular Orbital Theory
- Parameters of Covalent Bond
- Dipole Moment
- Resonance
Redox Reactions
- Introduction of Redox Reactions
- Oxidation Number
- Balancing Redox Reactions in Terms of Loss and Gain of Electrons
- Redox Reaction and Electrode Potential
Modern Periodic Table
- Introduction of Periodic Table
- Structure of the Modern Periodic Table
- Periodic Table and Electronic Configuration
- Blockwise Characteristics of Elements
- Periodic Trends in Elemental Properties
Elements of Group 1 and 2
- Hydrogen
- Alkali Metals and Alkaline Earth Metals
- Some Important Compounds of Elements of S-block
Elements of Group 13, 14 and 15
- Electronic Configuration of Elements of Groups 13, 14 and 15
- Trends in Atomic and Physical Properties of Elements of Groups 13, 14 and 15
- Chemical Properties of the Elements of the Groups 13,14 and 15
- Carbon: A Versatile Element
- Allotropes of Carbon > Diamond
- Molecular Structures of Some Important Compounds of the Group 13, 14 and 15 Elements
- Chemistry of Notable Compounds of Elements of Groups 13, 14 and 15
States of Matter
- Introduction of States of Matter: Gaseous and Liquid States
- Intermolecular Forces
- Characteristic Properties of Gases
- Gas Laws
- Ideal Gas Equation
- Kinetic Molecular Theory of Gases
- Deviation from Ideal Behaviour
- Liquefaction of Gases and Critical Constant
- Liquid State
Adsorption and Colloids
- Introduction of Adsorption
- Adsorption
- Types of Adsorption
- Factors Affecting Adsorption of Gases on Solids
- Adsorption Isotherms (Freundlich and Langmuir Adsorption Isotherm)
- Applications of Adsorption
- Catalysis
- Adsorption Theory of Heterogeneous Catalysis
- Colloids
Chemical Equilibrium
- Introduction of Chemical Equilibrium
- Equilibrium in Physical Processes
- Equilibrium in Chemical Processes - Dynamic Equilibrium
- Law of Mass Action and Equilibrium Constant
- Homogeneous and Heterogenous Equilibria
- Characteristics of Equilibrium Constant
- Applications of Equilibrium Constants
- Le Chaterlier's Principle and Factors Altering the Composition of Equilibrium
- Industrial Application
Nuclear Chemistry and Radioactivity
- Introduction: Nuclear Chemistry is a Branch of Physical Chemistry
- Classification of Nuclides
- Nuclear Stability
- Radioactivity
- Radioactive Decays
- Modes of Decay
- Nuclear Reactions
- Applications of Radio Isotopes
Basic Principles of Organic Chemistry
- Organic Chemistry
- Structural Representation of Organic Molecules
- Classification of Organic Compounds
- Nomenclature
- Isomerism
- Theoretical Basis of Organic Reactions
Hydrocarbons
Chemistry in Everyday Life
- Chemistry in Everyday Life
- Basics of Food Chemistry
- Compounds with Medicinal Properties
- Cleansing Agents
Estimated time: 11 minutes
- Definition: Chemistry
- Fundamental Concepts in Chemistry
Definition: Chemistry
Chemistry is the branch of science that deals with the identification of substances, the matter they are composed of, and the investigation of their properties.
Fundamental Concepts in Chemistry
1. Chemistry & Matter:
Chemistry studies all forms of matter — solids, liquids, and gases — their composition, structure, properties, and the changes they undergo.
2. Mass vs. Weight
- Mass = quantity of matter → location-independent
- Weight = force due to gravity → location-dependent
- Same object: same mass on Earth & Moon, but different weight
3. Heat ≠ Temperature
- Heat = mode of energy transfer (energy in motion)
- Temperature = property that determines the direction of heat flow
- These are fundamentally different concepts
4. °C to °F Conversion:
\[^{\circ}F=\frac{9}{5}\times^{\circ}C+32\]
Key checkpoints: 0°C = 32°F and 100°C = 212°F
5. Importance of Units:
Always write units at every stage of calculation to enable easy cancellation or conversion — prevents errors in numerical problems.
6. Law of Definite Composition — Limitation
This law is not true for all compounds — it holds only for compounds obtained from one type of isotope. Watch out for this in MCQs!
7. Mole — Specify the Entity:
Always state what the mole refers to:
1 mole O₂ ≠ 1 mole O (atoms)
Failing to specify causes ambiguity and wrong answers.
8. Key Constants:
