CBSE Class 12 Chemistry Syllabus 2025-26: Detailed Unit-Wise Guide, Marking Scheme & PDF Download

The Central Board of Secondary Education (CBSE) has released the Class 12 Chemistry syllabus for the academic session 2025-26. Students preparing for the CBSE Class 12 Board Exam 2026 must follow this updated syllabus to ensure comprehensive coverage of all important topics.

In this guide, we’ve provided a unit-wise breakdown, marking scheme, details of practical assessments, and a step-by-step guide to download the official CBSE Chemistry Syllabus PDF 2025-26.

This syllabus covers both physical and organic chemistry, with units like Solutions, Electrochemistry, Haloalkanes, Biomolecules, and more.

CBSE Class 12 Chemistry Syllabus 2025-26 PDF Download

Students can download the official syllabus PDF from the CBSE academic portal.

Direct Link:CBSE Class 12 Chemistry Syllabus 2025-26 PDF

How to Download CBSE Class 12 Chemistry Syllabus 2025-26 Online?

Follow these steps:

1. Visit cbseacademic.nic.in
2. Click on “Academic Website”
3. Go to the “Curriculum” section
4. Choose “Curriculum 2025-26”
5. Select “Senior Secondary Curriculum”
6. Click on “Academic Subjects”
7. Download the Chemistry syllabus PDF

CBSE Class 12 Chemistry Syllabus 2025-26: Unit-Wise Breakdown

Unit 1: Solutions

• Types of solutions
• Concentration units
• Solubility of solids and gases
• Raoult’s Law
• Colligative properties (vapor pressure lowering, boiling point elevation, freezing point depression, osmotic pressure)
• Van’t Hoff factor

Unit 2: Electrochemistry

• Redox reactions, EMF, standard electrode potential
• Nernst equation
• Conductivity (specific, molar)
• Kohlrausch’s Law
• Electrolysis, Galvanic cells, fuel cells
• Corrosion

Unit 3: Chemical Kinetics

• Rate of reaction, factors affecting rate
• Rate law, order, molecularity
• Integrated rate equations (zero and first order)
• Collision theory (elementary)
• Arrhenius equation

Unit 4: The d- and f-Block Elements

• Transition metals: properties and trends
• Preparation and properties of K₂Cr₂O₇, KMnO₄
• Lanthanides and Actinides: configuration, oxidation states, lanthanide contraction

Unit 5: Coordination Compounds

• Ligands, coordination number, IUPAC nomenclature
• Werner’s Theory, VBT, CFT
• Stereoisomerism
• Applications in metallurgy, biology

Unit 6: Haloalkanes and Haloarenes

• Classification and nomenclature
• Physical and chemical properties
• Optical isomerism
• Environmental impact of compounds like DDT, freons

Unit 7: Alcohols, Phenols, and Ethers

• Preparation, properties, identification
• Dehydration and electrophilic substitution
• Uses of methanol, ethanol, phenol

Unit 8: Aldehydes, Ketones, and Carboxylic Acids

• Nature of carbonyl group
• Preparation and chemical reactions
• Nucleophilic addition mechanism
• Acidic nature of carboxylic acids

Unit 9: Amines

• Classification and structure
• Preparation and properties
• Diazotisation and synthetic applications

Unit 10: Biomolecules

• Carbohydrates: Types, structures, functions
• Proteins: Structure and Denaturation
• Vitamins: Classification and role
• DNA & RNA: Basic structure and functions

CBSE 12th Chemistry Marking Scheme 2025-26 (70 Marks)

CBSE Class 12 Chemistry Practical Evaluation Scheme 2025-26 (30 Marks)

Why is the CBSE Class 12 Chemistry Syllabus Important?

• Ensures focused preparation for board exams
• Covers theoretical and practical aspects of Chemistry
• Builds foundational concepts for competitive exams like NEET and JEE
• Encourages analytical and experimental thinking
  

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