Tamil Nadu Class 12 (HSC) Latest Syllabus – Chemistry
The Tamil Nadu Class 12 Higher Secondary (HSC) Chemistry syllabus is one of the most crucial parts of the science stream. Chemistry not only forms the backbone for board exam preparation but also plays a key role in competitive exams such as NEET, JEE, and other engineering or medical entrance tests. The updated syllabus designed by the Tamil Nadu State Board provides students with in-depth knowledge of physical, organic, and inorganic chemistry while focusing on both theoretical and practical applications.
Chemistry in Class 12 helps students strengthen their problem-solving skills, understand real-life applications of chemical principles, and develop a strong foundation for higher studies in science and technology.
Overview of Tamil Nadu Class 12 Chemistry Syllabus
The syllabus is broadly divided into inorganic, physical, and organic chemistry sections along with lab experiments.
1. Solid State and Solutions
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Classification of crystalline solids
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Unit cell, packing efficiency, and defects in crystals
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Colligative properties of solutions
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Raoult’s law and ideal/non-ideal solutions
2. Electrochemistry and Chemical Kinetics
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Electrochemical cells, galvanic and electrolytic cells
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Nernst equation and its applications
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Rate of reactions, order, and molecularity
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Arrhenius equation and activation energy
3. Surface Chemistry
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Adsorption and its types
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Catalysis and enzyme activity
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Colloids: properties and applications
4. General Principles and Processes of Isolation of Elements
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Extraction of metals from ores
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Thermodynamic principles of metallurgy
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Refining processes
5. The p-Block and d-Block Elements
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Group 15, 16, 17, and 18 elements and their properties
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Compounds of nitrogen, phosphorus, oxygen, and sulfur
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Transition elements: properties, alloys, and compounds
6. Coordination Compounds and Haloalkanes
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Werner’s theory and IUPAC nomenclature
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Isomerism in coordination compounds
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Reactions of haloalkanes and haloarenes
7. Alcohols, Phenols, and Ethers
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Methods of preparation and reactions
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Electrophilic substitution reactions in phenols
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Properties of ethers
8. Aldehydes, Ketones, Carboxylic Acids, and Amines
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Nomenclature and structure
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Important reactions (Aldol condensation, Cannizzaro reaction, etc.)
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Preparation of carboxylic acids and amines
9. Biomolecules and Polymers
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Carbohydrates: classification and functions
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Proteins and enzymes
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Nucleic acids: DNA and RNA
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Synthetic polymers and their uses
10. Chemistry in Everyday Life
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Role of drugs in disease treatment
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Chemicals in food, cleansing agents, and cosmetics
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Environmental chemistry basics
Practical Components in Chemistry
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Volumetric analysis (acid-base and redox titrations)
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Salt analysis (systematic qualitative analysis of cations and anions)
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Preparation of organic and inorganic compounds
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Project work related to chemistry in daily life
Exam Pattern for Tamil Nadu Class 12 Chemistry
The board exam is structured to assess theoretical knowledge and experimental skills:
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Theory Paper: 70 marks
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Practical Examination: 20 marks
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Internal Assessment: 10 marks
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Duration: 3 hours
Importance of Studying Chemistry in Class 12
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Competitive Exam Relevance – Large portions of NEET and JEE questions are based on Class 12 Chemistry.
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Foundation for Higher Studies – Essential for careers in medicine, engineering, pharmacy, and research.
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Real-Life Applications – Helps in understanding industrial processes, medicines, and environmental issues.
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Skill Development – Enhances analytical thinking, problem-solving, and lab experiment handling.
Preparation Tips for Tamil Nadu Class 12 Chemistry
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Revise NCERT and state board textbooks regularly.
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Practice numericals in physical chemistry thoroughly.
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Memorize key reactions in organic and inorganic chemistry.
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Solve previous year question papers for better exam strategy.
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Strengthen practical knowledge through repeated lab practice.