Each chapters and topics in Karnataka 2nd PUC Chemistry exam has different weightage. Knowing about the weightage helps students prioritise topics accordingly. Check here Karnataka 2nd PUC Chemistry Weightage 2026!
Table of Contents
The Karnataka Secondary Education Examination Board (KSEEB) will administer the 100-mark Karnataka 2nd PUC Chemistry 2026 exam.The theory test is worth seventy marks and takes three hours and fifteen minutes; the remaining thirty are reserved for internal assessment. Because passing the test requires obtaining the minimum qualifying percentage in the combined total of theory and practical/internal assessment marks, balanced preparation is essential.
You are encouraged to concentrate more on high-weightage units in order to raise their overall scores because Chemistry is a core subject in the Karnataka 2nd PUC Exam 2026. The highest weighted chapters are Electrochemistry (13 marks), Solutions, Chemical Kinetics, and Aldehydes, Ketones & Carboxylic Acids (12 marks each). They should be given priority because they make up a large amount of the theory paper and often contain long-answer and numerical-based questions.
Karnataka 2nd PUC Chemistry Exam Pattern 2026
The Karnataka 2nd PUC Chemistry question paper is structured to assess your conceptual understanding, problem-solving abilities, and application-based learning through various sections. Part D (Long Answer Questions) has the highest weight of 28.57% of all parts, making it the highest-scoring section of the paper. Nonetheless, keep in mind that the passing criteria are based on the combined theory and practical scores, so a balanced preparation in all sections is required to obtain qualifying marks.
|
Question Paper Part |
Question Type |
Number of Questions |
Marks |
Weightage (%) |
|
PART – A |
MCQs |
15 / 15 |
15 / 15 |
14.29% |
|
PART – A |
Fill in the blanks |
05 / 05 |
05 / 05 |
4.76% |
|
PART – B |
Short Answer (SA = 02 Marks) |
03 / 05 |
06 / 10 |
9.52% |
|
PART – C |
Short Answer (SA = 03 Marks) – Inorganic Chemistry |
03 / 05 |
09 / 15 |
14.29% |
|
PART – C |
Short Answer (SA = 03 Marks) – Physical Chemistry |
02 / 04 |
06 / 12 |
11.43% |
|
PART – D |
Long Answer (LA = 05 Marks) |
04 / 06 |
20 / 30 |
28.57% |
|
PART – E |
Short Answer (SA = 03 Marks) – Numerical Problems |
03 / 06 |
09 / 18 |
17.14% |
|
TOTAL |
— |
35 / 46 |
70 / 105 |
100% |
Also Read: Karnataka 2nd PUC Chemistry Syllabus 2026
Karnataka 2nd PUC Chemistry Unit-Wise Weightage 2026
The unit 'Electrochemistry' carries the most weight, accounting for 12.38% of the total marks. Other units include solutions, chemical kinetics, aldehydes, ketones, and carboxylic acids, which account for 11.43% of the total weight. Moderate- and low-mark units should also be revised for content accuracy and balance, but focusing heavily on these chapters can significantly improve overall scores.
|
Units |
Marks Allotted (Approx.) |
Weightage % (Approx.) |
|
Electrochemistry |
13 |
12.38% |
|
Aldehydes, Ketones & Carboxylic Acids |
12 |
11.43% |
|
Solutions |
12 |
11.43% |
|
Chemical Kinetics |
12 |
11.43% |
|
Coordination Compounds |
11 |
10.48% |
|
Alcohols, Phenols & Ethers |
10 |
9.52% |
|
d- and f-block Elements |
10 |
9.52% |
|
Haloalkanes and Haloarenes |
9 |
8.57% |
|
Biomolecules |
9 |
8.57% |
|
Amines |
7 |
6.67% |
|
Total |
105 Marks |
100% |
Also Read: Karnataka 2nd PUC Chemistry Deleted Syllabus 2026
Karnataka 2nd PUC Chemistry Chapter-Wise Weightage 2026
Certain areas of the syllabus have a relatively greater weightage and, therefore, need to be at the top of your priority list while preparing for the Karnataka 2nd PUC Chemistry theory paper. There is a huge chunk of marks (around 12.38%) allotted to Electrochemistry. The next groups of chapters are Chemical Kinetics, Solutions, and Aldehydes, Ketones, and Carboxylic Acids, each approximately contributing a share of 11.43%. Furthermore, the topic of coordination compounds significantly contributes to the summation (around 10.48%). By focusing on these high-key chapters, you can optimize your scoring during the examinations and, at the same time, prepare for the entire syllabus in a methodical manner.
|
Unit |
Chapters (As per Syllabus) |
Marks Allotted (Approx.) |
Weightage % (Approx.) |
|
Solutions |
Types of Solutions Solubility Expressing Concentration of Solutions Ideal and Non-ideal Solutions Vapor Pressure of Liquid Solutions Colligative Properties and Determination of Molar Mass |
12 |
11.43% |
|
Electrochemistry |
Electrochemical Cells Conductance of Electrolytic Solutions Nernst Equation Electrolytic Cells and Electrolysis (excluding laws) |
13 |
12.38% |
|
Chemical Kinetics |
Factors Influencing the Rate of a Reaction Integrated Rate Equations Rate of a Chemical Reaction |
12 |
11.43% |
|
d- and f-Block Elements |
Position in the Periodic Table General Properties of Transition Elements Electronic Configurations Lanthanoids Actinoids Applications |
10 |
9.52% |
|
Coordination Compounds |
Definitions of Important Terms Werner’s Theory Nomenclature Bonding in Metal Carbonyls Bonding in Coordination Compounds Stability of Coordination Compounds |
11 |
10.48% |
|
Haloalkanes and Haloarenes |
Nomenclature Classification Nature of C–X Bond Physical Properties Chemical Reactions Methods of Preparation |
9 |
8.57% |
|
Alcohols, Phenols and Ethers |
Nomenclature Classification Alcohols and Phenols Structures of Functional Groups Ethers |
10 |
9.52% |
|
Aldehydes, Ketones and Carboxylic Acids |
Nomenclature Nature of Carbonyl Group Methods of Preparation Physical and Chemical Properties |
12 |
11.43% |
|
Amines |
Nomenclature Methods of Preparation Physical and Chemical Properties |
7 |
6.67% |
|
Biomolecules |
Carbohydrates Proteins Vitamins |
9 |
8.57% |
|
Total |
— |
105 Marks |
100% |
Karnataka 2nd PUC Chemistry Internal Assessment Weightage 2026
Internal exams carry huge weightage (30 marks) and can make a big difference in the final score of the Karnataka 2nd PUC Chemistry 2026 examination. It is normally quite easy to score full marks in internal exams as compared to theory, so be sure to work hard on your internals.
|
Component |
Marks |
|
Internal Assessment |
30 Marks |
How to Score High using Karnataka 2nd PUC Chemistry Weightage 2026?
Given below are some of the tips to score high using Karnataka 2nd PUC Chemistry Weightage 2026:
- It is important to identify the chapters with the high marks first and focus on them. For instance, in the theory paper, Electrochemical Cells, Conductance of Electrolytic Solutions, the Nernst Equation, Electrolytic Cells, and Electrolysis combined account for a significant portion of the theory paper.
- Practice a lot of numerical problems, derivations, and formula questions, especially in Electrochemistry, Solutions, and Chemical Kinetics, since these topics most often involve long-answer-type or problem-solving questions
- Study all of the NCERT class 12 chemistry exercises, in-text questions, and solved examples.
- All named reactions, mechanisms, and functional group transformations should be studied thoroughly and memorized.
- For high scores in Physical Chemistry, daily practice with numericals is crucial.
-
Make brief notes to quickly review inorganic chemistry formulas, graphs, and trends.
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