CISCE ISC Class 12 Chemistry (Theory) Syllabus - Free PDF Download
CISCE Syllabus 2026-27 ISC Class 12: The CISCE ISC Class 12 Chemistry (Theory) Syllabus for the examination year 2026-27 has been released by the Council for the Indian School Certificate Examinations, CISCE. The board will hold the final examination at the end of the year following the annual assessment scheme, which has led to the release of the syllabus. The 2026-27 CISCE ISC Class 12 Chemistry (Theory) Board Exam will entirely be based on the most recent syllabus. Therefore, students must thoroughly understand the new CISCE syllabus to prepare for their annual exam properly.
The detailed CISCE ISC Class 12 Chemistry (Theory) Syllabus for 2026-27 is below.
Academic year:
CISCE ISC Class 12 Chemistry (Theory) Revised Syllabus
CISCE ISC Class 12 Chemistry (Theory) Course Structure 2026-27 With Marking Scheme
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Syllabus
1: Physical Chemistry [Revision]
CISCE ISC Class 12 Chemistry (Theory) Syllabus
1 Solid State [Revision]
- Introduction to Solid State
- Classification of Solids
- Crystalline Solids
- Amorphous Solids
- Distinctions between Crystalline and Amorphous Solids
- Classification of Crystalline Solids
- Space Lattice
- States of Matters: Structure and Properties Solid State
- Definition of Unit Cell
- Introduction
- Parameters of a Unit Cell
- Types of Unit Cells
- Definition of Unit Cell
- Different Types of Cubic Systems
- Number of Particles Per Unit Cell in Different Cubic Systems
- Rules for Calculating the Number of Particles in a Cubic Unit Cell
- Calculation of Number of Particles (Atoms) in the Unit Cells of Different Types of Cubic Systems
- Calculation of the Space Occupied (Packing Fraction) in the Unit Cells of Different Types of Cubic Systems
- Introduction
- Simple cubic unit cell
- Body-centred cubic unit cell
- Face-centred cubic unit cell
- Calculation of Density of a Crystal
- Introduction
- Density of Cubic Crystals of Elements
- Density of Cubic Crystals of Ionic Compounds
- Close-packed Structures
- Packing of Constituent Particles in Crystals
- Close Packing in Two Dimensions
- Close Packing in Three Dimensions
- Coordination Number
- Voids in Close-Packed Structures
- Dimensions of Voids
- Radius of a tetrahedral void
- Radius of an octahedral void
- Location of Tetrahedral Voids
- Location of Octahedral Voids
- Radius Ratio Rules
- Number of Voids Filled and the Formula of the Compound
- Types of Crystalline Solids: Molecular Solids
- Introduction
- Characteristics of Molecular Solids
- Crystal Structure of Dry Ice (Solid CO₂)
- Types of Crystalline Solids: Ionic Solids
- Introduction
- Characteristics of Ionic Solids
- Structure of Ionic Solids
- Types of Crystalline Solids: Covalent Solids {Atomic or Network Solids)
- Introduction
- Structure, Properties and Uses of Diamond
- Structure, Properties and Uses of Graphite
- Types of Crystalline Solids: Metallic Solids
- Introduction
- Characteristics of Metallic Solids
- Crystal Structure of Copper Metal
- Imperfections (Defects) in Solids
- Imperfections (Defects) in Solids: Electronic Imperfections
- Imperfections (Defects) in Solids: Atomic Imperfections
- Introduction
- Point Defects
- Point Defects: Stoichiometric Defects
- Point Defects: Non-Stoichiometric Defects
- Lattice Defects
- Imperfections (Defects) Caused by Impurities
- Properties of Solids: Electrical Properties
- Properties of Solids: Magnetic Properties
- Properties of Solids: Dielectric Properties
- Amorphous Solids
- Introduction
- Properties of Amorphous Solids
- Uses of Amorphous Solids
1 Solutions [Revision]
- Introduction to Solutions
- Types of Solutions
- Composition of a Solution
- Mass Percentage or Percentage by Mass (w/w) and Volume Percentage or Percentage by Volume (v/v)
- Grams Per Litre (g/L) and Molarity (M)
- Formality (F) and Molality (m)
- Normality (N) and Mole Fraction (χ)
- Parts per Million (ppm)
- Examples
- Intensive and Extensive Properties
- Colligative Properties
- Relative lowering of vapour pressure
- Determination of molar mass from relative lowering of vapour pressure
- Osmosis and osmotic pressure
- Isotonic solutions
- Non-Volatile, Non-Electrolytic and Electrolytic Solutes
- Dissociation and Association
- Dissociation
- Association
- Solutions of Gases in Liquids
- Introduction
- Henry's Law
- Applications and Limitations of Henry's Law
- Solid Solutions
- Solutions of Solids in Liquids
- Introduction
- Solubility
- Ideal Solutions
- Condition for the Formation of an Ideal Solution
- Characteristics of an Ideal Solution
- p-χ Diagram for an Ideal Solution
- Non-Ideal Solutions
- Types of Non-Ideal Solutions
- Solutions Showing Positive Deviation from Raoult's Law
- Solutions Showing Negative Deviation from Raoult's Law
- Principle of Fractional Distillation and Azeotropic (Constant Boiling) Mixtures
- Introduction
- Minimum boiling azeotropic mixtures
- Maximum boiling azeotropic mixtures
- Examples
- Colligative Properties and Determination of Molar Mass
- Abnormal Molecular Masses
- Association and Dissociation of Solute Molecules : Cause of Abnormal Molecular Masses
- Van’t Hoff Factor
- Calculation of Extent of Association or Dissociation of a Solute in Solution
- Calculation of Degree of Association
- Calculation of Degree of Dissociation
- Examples
- Overview of Solutions
2 Electrochemistry [Revision]
3 Chemical Kinetics [Revision]
5 Surface Chemistry [Revision]
2: Inorganic Chemistry [Revision]
CISCE ISC Class 12 Chemistry (Theory) Syllabus
4 d-and f-Block Elements [Revision]
5 Coordination Compounds [Revision]
6 General Principles and Processes of Isolation of Elements [Revision]
7 p-Block Elements [Revision]
3: Organic Chemistry [Revision]
CISCE ISC Class 12 Chemistry (Theory) Syllabus
6 Haloalkanes and Haloarenes [Revision]
7 Alcohols, Phenols and Ethers [Revision]
8 Aldehydes, Ketones and Carboxylic Acids [Revision]
9 Organic Compounds Containing Nitrogen [Revision]
10 Biomolecules [Revision]
15 Polymers [Revision]
16 Chemistry in Everyday Life [Revision]
