Academic Session 2026-27

Tamil Nadu Board Class 11 Commerce Chapter Weightage 2026-27

Complete Mark Distribution for TNBSE Class 11 Commerce Subjects

Accountancy • Business Studies • Economics • Mathematics/Statistics • Chapter-wise Marks • 80 Theory + 20 Internal

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4 Core Subjects 80 Theory Marks 20 Internal Marks 35% Passing Criteria

Chapter-wise Weightage for Commerce 2026-27

Detailed mark distribution for each subject to help you prioritize your exam preparation.

Accountancy - Chapter Weightage (80 Marks)

Unit	Topics Covered	Marks	Weightage
Journal and Ledger	Journalizing Transactions Special Purpose Journals Ledger Posting and Balancing Trial Balance	20	25%
Final Accounts	Trading Account Profit and Loss Account Balance Sheet Adjusting and Closing Entries	18	22.5%
Bank Reconciliation Statement	Bank Reconciliation Concepts Preparation of BRS Adjusted Cash Book Method Practical Problems	12	15%
Depreciation	Straight Line Method Written Down Value Method Provision for Depreciation Asset Disposal	15	18.75%
Introduction to Accounting	Accounting Principles Accounting Equations Types of Accounts Double Entry System	15	18.75%
Total		80	100%

Internal Assessment: 20 marks (Periodic Tests - 10, Notebook - 5, Practical/Project - 5)

Business Studies - Chapter Weightage (80 Marks)

Unit	Topics Covered	Marks	Weightage
Principles of Management	Fayol's Principles Taylor's Scientific Management Functions of Management Applications	18	22.5%
Forms of Business Organizations	Sole Proprietorship Partnership Joint Stock Company Co-operative Societies	15	18.75%
Business Environment	Economic Environment Social and Cultural Environment Political and Legal Environment Technological Environment	15	18.75%
Nature and Purpose of Business	Business Concepts Classification of Business Activities Business Risks Social Responsibility	12	15%
Marketing Management	Marketing Mix Consumer Behavior Market Segmentation Digital Marketing	10	12.5%
Consumer Protection	Consumer Rights Consumer Protection Act Redressal Mechanism Consumer Awareness	10	12.5%
Total		80	100%

Internal Assessment: 20 marks (Periodic Tests - 10, Notebook - 5, Project/Case Studies - 5)

Economics - Chapter Weightage (80 Marks)

Unit	Topics Covered	Marks	Weightage
Consumer Equilibrium	Utility Analysis Law of Diminishing Marginal Utility Indifference Curve Analysis Consumer Budget and Equilibrium	15	18.75%
Production and Costs	Factors of Production Law of Diminishing Returns Concept of Cost Cost Curves	18	22.5%
Market Structures	Perfect Competition Monopoly Monopolistic Competition Oligopoly	15	18.75%
National Income	National Income Concepts Methods of Measurement GDP, GNP, NNP Indian Economy Sectors	12	15%
Introduction to Microeconomics	Microeconomics - Scope Economic Problems Opportunity Cost Basic Economic Concepts	12	15%
International Trade	International Trade Concepts Theories of Trade Balance of Payments Foreign Exchange	8	10%
Total		80	100%

Internal Assessment: 20 marks (Periodic Tests - 10, Notebook - 5, Project/Analysis - 5)

Mathematics - Chapter Weightage (80 Marks)

Unit	Topics Covered	Marks	Weightage
Calculus	Limits and Derivatives Application of Derivatives Integration Concepts Applications	20	25%
Algebra	Complex Numbers Quadratic Equations Permutations and Combinations Sequence and Series	20	25%
Statistics	Measures of Central Tendency Measures of Dispersion Probability Concepts Probability Distributions	16	20%
Linear Programming	Linear Programming Concepts Graphical Method Business Applications	12	15%
Sets and Functions	Sets - Types and Operations Relations and Functions Trigonometric Functions	12	15%
Total		80	100%

Internal Assessment: 20 marks (Periodic Tests - 10, Notebook - 5, Subject Enrichment - 5)

Statistics - Chapter Weightage (80 Marks)

Unit	Topics Covered	Marks	Weightage
Measures of Central Tendency	Arithmetic Mean Geometric Mean Median and Mode Harmonic Mean	18	22.5%
Measures of Dispersion	Range and Interquartile Range Quartile Deviation Mean Deviation Standard Deviation	18	22.5%
Probability	Probability Concepts Conditional Probability Bayes' Theorem Probability Distributions	16	20%
Business Statistics	Statistical Decision Making Index Numbers Time Series Analysis Correlation and Regression	16	20%
Data Organization	Data Collection Methods Frequency Distribution Graphical Representation Data Presentation	12	15%
Total		80	100%

Internal Assessment: 20 marks (Periodic Tests - 10, Notebook - 5, Project/Data Analysis - 5)

Smart Preparation Tips Based on Weightage

Focus on High-Weightage Topics

Prioritize units with higher marks like Journal and Ledger in Accountancy (20 marks), Principles of Management in Business Studies (18 marks), and Calculus in Mathematics (20 marks).

Balance Subjects Effectively

Allocate study time proportionally to the weightage of each subject. Accountancy and Mathematics need more problem-solving time.

Internal Assessment Matters

Don't ignore the 20 internal marks. Submit notebooks on time, participate in periodic tests, and complete practical work diligently.

Practice Professional Exam Questions

Solve CA Foundation/CS Foundation level questions from high-weightage chapters. This helps in both school exams and professional exams.

Frequently Asked Questions About Chapter Weightage

How is the chapter weightage useful for exam preparation?

Chapter weightage helps students prioritize their study time effectively. By knowing which chapters carry more marks, you can allocate more time to high-weightage topics while still covering all units. This strategic approach ensures better exam results with efficient preparation.

Does the chapter weightage change every year?

The chapter weightage is generally consistent year to year, but it's advisable to check the official TNBSE website for any updates. Minor changes may occur based on curriculum revisions.

What is the passing criteria for Class 11 Commerce?

Students must secure a minimum of 35% marks in each subject to be promoted to Class 12. This applies to both theory and internal assessment components combined. Failure in any subject may require compartmental examination.

How can StudyDecode help with Class 11 Commerce preparation?

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