Karnataka Board Class 12 Chemistry Syllabus 2026-27: Complete II PUC Guide with Chapter-Wise Weightage

Karnataka Board Class 12 Chemistry Syllabus 2026-27: Complete II PUC Guide with Chapter-Wise Weightage

Chemistry in Karnataka Board Class 12 (II PUC) is a vital subject for Science students aspiring to build careers in engineering, medicine, pharmacy, biotechnology, environmental science, and research. The syllabus, prescribed by the Department of Pre-University Education (DPUE), Karnataka, is designed to strengthen students’ understanding of chemical principles, reactions, and real-world applications.


Class 12 Chemistry carries a total of 100 marks, divided into 70 marks for theory, 20 marks for practical examination, and 10 marks for internal assessment. Balanced preparation across Physical, Inorganic, and Organic Chemistry is essential to score well in both board exams and competitive tests like KCET, JEE, and NEET.

Practising past papers is the best way to use this syllabus. Gradehunt’s Karnataka Board test series gives you chapter-wise and full-syllabus papers with detailed evaluation, so you know where you lose marks before the board exam.

Karnataka II PUC Chemistry: Syllabus Overview

The II PUC Chemistry syllabus builds on Class 11 fundamentals and advances into application-based learning. It focuses on:

✅ Conceptual clarity

✅ Numerical problem-solving

✅ Reaction mechanisms

✅ Laboratory skills


✔ Marks Distribution

✅ Theory Examination: 70 Marks

✅ Practical Examination: 20 Marks

✅ Internal Assessment: 10 Marks

✅ Exam Duration: 3 Hours


✔ Physical Chemistry

Physical Chemistry emphasizes calculations, formulas, and fundamental laws governing chemical systems. This section is highly scoring for students comfortable with numericals.


✔ Chapters Included

✅ Solid State

✅ Solutions

✅ Electrochemistry

✅ Chemical Kinetics

✅ Surface Chemistry


✔ Key Focus Areas

✅ Crystal lattice structures and defects

✅ Colligative properties and concentration terms

✅ Electrochemical cells and Nernst equation

✅ Reaction rates and order of reactions

✅ Adsorption and catalysis

Regular numerical practice is crucial to mastering this section.


✔ Inorganic Chemistry

Inorganic Chemistry focuses on the study of elements, their properties, extraction, and coordination behavior.


✔ Chapters Included

✅ General Principles and Processes of Isolation of Elements

✅ p-Block Elements

✅ d- and f-Block Elements

✅ Coordination Compounds


✔ Key Focus Areas

✅ Metallurgy processes

✅ Periodic trends and compound properties

✅ Transition metals and their applications

✅ Bonding, nomenclature, and isomerism in coordination compounds

This section requires conceptual understanding and systematic revision.


✔ Organic Chemistry

Organic Chemistry deals with carbon compounds, their reactions, mechanisms, and applications in daily life.


✔ Chapters Included

✅ Haloalkanes and Haloarenes

✅ Alcohols, Phenols, and Ethers

✅ Aldehydes, Ketones, and Carboxylic Acids

✅ Amines

✅ Biomolecules

✅ Polymers

✅ Chemistry in Everyday Life


✔ Key Focus Areas

✅ Functional groups and nomenclature

✅ Reaction mechanisms and named reactions

✅ Preparation, properties, and uses of compounds

✅ Applications in medicine, food, and industry

Reaction writing and mechanism practice are essential for scoring high marks.


✔ Chapter-Wise Weightage for II PUC Chemistry (Theory – 70 Marks)

Understanding chapter-wise weightage helps students plan preparation strategically and focus on high-scoring areas.


✔ Physical Chemistry Weightage

ChapterMarks (Approx.)

Solid State

3–4

Solutions

4–5

Electrochemistry

5–6

Chemical Kinetics

4–5

Surface Chemistry

3–4

Total

20–24 Marks

-

✔ Inorganic Chemistry Weightage

ChapterMarks (Approx.)

Isolation of Elements

3–4

p-Block Elements

5–6

d- and f-Block Elements

4–5

Coordination Compounds

5–6

Total

17–21 Marks

-

✔ Organic Chemistry Weightage

ChapterMarks (Approx.)

Haloalkanes & Haloarenes

4–5

Alcohols, Phenols & Ethers

4–5

Aldehydes, Ketones & Carboxylic Acids

5–6

Amines

3–4

Biomolecules

3–4

Polymers

2–3

Chemistry in Everyday Life

2–3

Total

23–27 Marks

-

✔ Overall Weightage Summary

BranchApprox. Marks

Physical Chemistry

20–24

Inorganic Chemistry

17–21

Organic Chemistry

23–27

Total Theory Marks

70 Marks

Chemistry Practical Examination (20 Marks)

Practical work helps students apply theoretical knowledge in real laboratory conditions.


✔ Includes

✅ Volumetric analysis

✅ Qualitative inorganic analysis

✅ Organic compound identification

✅ Practical record

✅ Viva voce

Students should clearly understand procedures, reactions, and observations.


✔ Internal Assessment (10 Marks)

Internal assessment is based on:

✅ Unit tests

✅ Assignments

✅ Practical performance

✅ Attendance and participation

Consistent effort can help students secure full internal marks.


✔ Exam Pattern and Question Types

The II PUC Chemistry theory paper generally includes:

✅ Very short answer questions

✅ Short answer questions

✅ Long answer questions

✅ Numerical problems

✅ Reaction-based questions

Neat presentation, correct chemical equations, and proper units are important.


✔ Preparation Tips for Class 12 Chemistry

✅ Divide study time evenly among all three branches

✅ Practice numericals daily for Physical Chemistry

✅ Revise reactions and trends regularly for Inorganic Chemistry

✅ Focus on mechanisms and named reactions in Organic Chemistry

✅ Maintain separate notebooks for formulas and reactions

✅ Solve previous years’ question papers


✔ Importance of Class 12 Chemistry

A strong foundation in Chemistry helps students:

✅ Succeed in medical and engineering entrance exams

✅ Understand industrial and pharmaceutical processes

✅ Develop analytical and laboratory skills

✅ Build careers in healthcare, research, and technology


Conclusion


The Karnataka Board Class 12 Chemistry syllabus 2026-27 is comprehensive, balanced, and application-oriented. With clear understanding of concepts, regular numerical practice, systematic revision of reactions, and proper laboratory preparation, students can score high marks in the board examination. Strategic preparation based on chapter-wise weightage ensures efficient learning and academic success, laying a strong foundation for higher education and professional careers.