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CBSE Class 12th Board Exam: Syllabus | Marking Scheme | Chapter-wise Weightage

  • ACIO
  • November 24, 2023
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CBSE class 12th board exams are the most critical exam in every student’s life. Their performance and score in the class 12th board exam determine their future career path.

For the session 2023-24, CBSE has rolled back its two-examination policy implemented during the pandemic. Instead, from this year onwards, CBSE will conduct a single examination at the end of the year covering the complete prescribed syllabus. Also, to help students acquire the skills required to meet the challenges presented by the 21st century, the board has decided to implement Competency-Based Education (CBE) in schools. Hence in the forthcoming years, more Competency-Based Questions will be asked. Competency-Based Questions examine the application of concepts in unfamiliar and real-life scenarios. Therefore, students are required to prepare diligently to ace CBSE class 12th board exams. And since effective preparation necessitates the knowledge of the exam syllabus and marking scheme, here we present an updated marking schemeunit-wise and chapter-wise weightage of MathematicsPhysicsChemistryBiology and English for CBSE class 12th board exams.

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CBSE Class 12th Board Exam 2023:

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Marking Scheme for Mathematics:

According to the new assessment policy, the CBSE class 12th mathematics examination will be of 100 marks. Out of which, 20 marks are allocated to the internal assessment, and the remaining 80 marks are allocated to the theory paper. The duration of the theory paper is 3 hours (180 minutes), consisting of a mix of subjective-type questions and MCQs. Here’s the marking scheme for CBSE class 12th mathematics exam:

Section No. of Questions Total Marks
Section A: MCQs (1 mark) 20 20
Section B: Short Answer Type-I (2 marks) 5 10
Section C: Short Answer Type-II (3 marks) 6 18
Section D: Long Answer Type (5 marks) 4 20
Section E: Competency-Based (4 marks) 3 12
Total 38 80
Internal Assessment 20
Grand Total 100

Unit-wise weightage for Mathematics:

Unit Name Marks
Relations and Functions 8
Algebra 10
Calculus 35
Vectors and Three – Dimensional Geometry 14
Linear Programming 5
Probability 8
Total 80

Chapter-wise Weightage for Mathematics:

Chapter Name 1M (MCQ) 2M 3M 5M 4M Total Marks
Relations and Functions 0 0 0 1 0 5
Inverse Trigonometric Functions 1 1 0 0 0 3
Matrices 5 0 0 0 0 5
Determinants 0 0 0 1 0 5
Continuity and Differentiability 2 1 0 0 0 4
Applications of Derivatives 0 1 0 0 2 10
Integrals 2 0 3 0 0 11
Applications of the Integrals 0 0 0 1 0 5
Differential Equations 2 0 1 0 0 5
Vectors 3 2 0 0 0 7
Three – dimensional Geometry 2 0 0 1 0 7
Linear Programming 2 0 1 0 0 5
Probability 1 0 1 0 1 8
Total 20 5 6 4 3 80

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Marking Scheme for Physics:

CBSE class 12th Physics examination will be of 100 marks. Out of which, 30 marks are allocated to the practicals, and the remaining 70 marks are allocated to the theory paper. The duration of the theory paper is 3 hours (180 minutes), consisting of a mix of subjective-type questions and MCQs. Here’s the marking scheme for CBSE class 12th physics exam:

Section No. of Questions Total Marks
Section A: MCQs (1 mark) 18 18
Section B: Short Answer Type-I (2 marks) 7 14
Section C: Short Answer Type-II (3 marks) 5 15
Section D: Long Answer Type  (5 marks) 3 15
Section E: Competency-Based (4 marks) 2 8
Total 35 70
Practicals 30
Grand Total 100

Unit-wise weightage for Physics:

Units Name Total Marks
Unit–I Electrostatics 16
Chapter–1: Electric Charges and Fields
Chapter–2: Electrostatic Potential and Capacitance
Unit-II Current Electricity
Chapter–3: Current Electricity
Unit-III Magnetic Effects of Current and Magnetism 17
Chapter–4: Moving Charges and Magnetism
Chapter–5: Magnetism and Matter
Unit-IV Electromagnetic Induction and Alternating Currents
Chapter–6: Electromagnetic Induction
Chapter–7: Alternating Current
Unit-V Electromagnetic Waves 18
Chapter–8: Electromagnetic Waves
Unit-VI Optics
Chapter–9: Ray Optics and Optical Instruments
Chapter–10: Wave Optics
Unit-VII Dual Nature of Radiation and Matter 12
Chapter–11: Dual Nature of Radiation and Matter
Unit-VIII Atoms and Nuclei
Chapter–12: Atoms
Chapter–13: Nuclei
Unit-IX Electronic Devices 7
Chapter–14: Semiconductor Electronics: Materials, Devices and Simple Circuits
Total 70

Chapter-wise Weightage for Physics:

Chapter Name 1M (MCQ) 2M 3M 5M 4M Total Marks
Electric Charges and Fields 1 1 0 1 0 8
Electrostatic Potential and Capacitance 2 0 0 0 0 2
Current Electricity 1 0 0 1 0 6
Moving Charges and Magnetism 2 0 1 0 0 5
Magnetism and Matter 1 1 0 0 0 3
Electromagnetic Induction 2 0 1 0 0 5
Alternating Current 1 0 1 0 0 4
Electromagnetic Waves 1 1 0 0 0 3
Ray Optics and Optical Instruments 0 1 0 1 1 11
Wave Optics 2 1 0 0 0 4
Dual Nature of Radiation and Matter 2 1 1 0 0 7
Atoms 1 0 1 0 0 4
Nuclei 1 0 0 0 0 1
Semiconductor Electronics: Materials, Devices and Simple Circuits 1 1 0 0 1 7
Total 18 7 5 3 2 70

Marking Scheme for Chemistry:

CBSE class 12th Chemistry examination will be of 100 marks. Out of which, 30 marks are allocated to the practicals, and the remaining 70 marks are allocated to the theory paper. The duration of the theory paper is 3 hours (180 minutes), consisting of a mix of subjective-type questions and MCQs. Here’s the marking scheme for CBSE class 12th chemistry exam:

Section No. of Questions Total Marks
Section A: MCQs (1 mark) 18 18
Section B: Short Answer Type-I (2 marks) 7 14
Section C: Short Answer Type-II (3 marks) 5 15
Section D: Long Answer Type (5 marks) 3 15
Section E: Competency-Based (4 marks) 2 8
Total 35 70
Practicals 30
Grand Total 100

Unit-wise weightage for Chemistry:

Title Marks
Solutions 7
Electrochemistry 9
Chemical Kinetics 7
d -and f -Block Elements 7
Coordination Compounds 7
Haloalkanes and Haloarenes 6
Alcohols, Phenols and Ethers 6
Aldehydes, Ketones and Carboxylic Acids 8
Amines 6
Biomolecules 7
Total 70

Chapter-wise Weightage for Chemistry:

Chapter Name 1M (MCQ) 2M 3M 5M 4M Total Marks
Solutions 0 0 1 0 1 7
Electrochemistry 1 1 0 1 0 8
Chemical Kinetics 3 2 0 0 0 7
d -and f -Block Elements 2 0 0 1 0 7
Coordination Compounds 2 1 1 0 0 7
Haloalkanes and Haloarenes 1 1 1 0 0 6
Alcohols, Phenols and Ethers 3 0 1 0 0 6
Aldehydes, Ketones and Carboxylic Acids 2 1 0 1 0 9
Amines 3 0 1 0 0 6
Biomolecules 1 1 0 0 1 7
Total 18 7 5 3 2 70

Marking Scheme for Biology:

CBSE class 12th Biology examination will be of 100 marks. Out of which, 30 marks are allocated to the practicals, and the remaining 70 marks are allocated to the theory paper. The duration of the theory paper is 3 hours (180 minutes), consisting of a mix of subjective-type questions and MCQs. Here’s the marking scheme for CBSE class 12th biology exam:

Section No. of Questions Total Marks
Section A: MCQs (1 mark) 16 16
Section B: Short Answer Type-I (2 marks) 5 10
Section C: Short Answer Type-II (3 marks) 7 21
Section D: Long Answer Type (5 marks) 3 15
Section E: Competency-Based (4 marks) 2 8
Total 33 70
Practicals 30
Grand Total 100

Unit-wise weightage for Biology:

Title Marks
Reproduction 16
Genetics and Evolution 20
Biology and Human Welfare 12
Biotechnology and its Applications 12
Ecology and Environment 10
Total 70

Chapter-wise Weightage for Biology:

Chapter Name 1M (MCQ) 2M 3M 5M 4M Total Marks
Reproduction in Organisms 0 0 0 0 0 0
Sexual Reproduction in Flowering Plants 1 0 1 0 0 4
Human Reproduction 0 1 1 1 0 10
Reproductive Health 2 0 0 0 0 2
Principles of Inheritance and Variation 1 1 0 0 1 7
Molecular Basis of Inheritance 1 0 2 1 0 12
Evolution 1 0 1 0 0 4
Human Health and Disease 3 1 1 0 1 12
Strategies for Enhancement in  Food Production 0 0 0 0 0 0
Microbes in Human Welfare 1 0 0 0 0 1
Biotechnology : Principles and Processes 1 1 0 0 0 3
Biotechnology and its Applications 0 0 0 1 0 5
Organisms and Populations 2 0 0 0 0 2
Ecosystem 2 1 0 0 0 4
Biodiversity and Conservation 1 0 1 0 0 4
Environmental Issues 0 0 0 0 0 0
Total 16 5 7 3 2 70

Marking Scheme for English:

English Core examination will be of 100 marks. Out of which, 20 marks are allocated to the internal assessment, and the remaining 80 marks are allocated to the written paper. The duration of the exam is 3 hours (180 minutes), consisting of a mix of subjective-type questions and MCQs. Here’s the marking scheme for CBSE class 12th English Core exam:

Section Total Question Total Marks
Reading Skills 2 20
Creative Writing Skills 4 20
Literature Text Books and Supplementary Reading Texts 12 40
Total 80
Internal Assessment 20
Grand Total 100
Description of Literature No. of Question Total Marks
MCQ/ Very Short Answer Type 3 16
Short Answer Type (40-50 Words) 7 14
Long Answer Type (120-150 Words) 2 10

For English, we encourage students to prepare all the chapters, including stories and poems from both the books – Flamingo and Vistas.

Smart preparation is the key to ace CBSE class 12th board exam. It necessitates a thorough knowledge of the marking scheme and weightage. Use the above information to polish your preparation and pass the exams with flying colours.

ALLEN Overseas wishes all the CBSE class 12th students good luck for their board exams.

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