# Class 12 NCERT Rationalised Chapters and Topics

At Educart, we provide reduced syllabus charts for our 100% syllabus Question Banks for classes 10 and 12. NCERT has now released similar NCERT Rationalised Chapter and Topic charts for all Class 9-12 subject books.

It is safe to say that this rationalised syllabus is permanent and will be followed in the coming years for board exams and competitive exams like NEET and CUET.

This change has been in the works for a long time in accordance with NEP 2020, which provides instructions to take load off of students so they can indulge themselves in competency-based learning instead of rote memorisation. This is also why the syllabus has been reduced multiple times in the past couple years.

So now finally NCERT has updated all these deleted chapters and topics for Class 9 to 12 textbooks so students may not follow them for board preparation.

Below, we have provided up all the reduced topics for all Class 12 subjects in tabular form.

Class 12 English Core - Flamingo Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Poetry Chapter 2: An Elementary School Classroom in a Slum by Stephen Spender 92-94 Full Chapter

Class 12 English Core - Vistas Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Chapter 5: Should Wizard Hit Mommy by John Updike 48-55 Full Chapter
Chapter 7: Evans Tries an O-Level by Colin Dexter 70-92 Full Chapter

Class 12 Hindi Core - Aroh Reduced Chapters/ Topics
पाठ का नाम पृष्ठ संशोधन (घटाए गए विषय)
सहर्ष स्वीकारा है 27-33 पूरा पाठ
चार्ली चैप्लिन यानी हम सब 118-127 पूरा पाठ
नमक 128-140 पूरा पाठ

Class 12 Hindi Core - Vitan Reduced Chapters/ Topics
पाठ का नाम पृष्ठ संशोधन (घटाए गए विषय)
डायरी के पन्ने 53-78 पूरा पाठ
Class 12 Physics Part 1 Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Chapter 1: Electric Charges and Fields 2-7
47-50
1.2 Electric Charge (Partially)
1.3 Conductors and Insulators (Partially)
1.4 Charging by Induction
Exercises: 1.13, 1.25 to 1.34
Chapter 2: Electrostatic
potential and capacitance
81
87-92
2.15 Energy stored in a Capacitor (Partially)
Exercises: 2.12 to 2.36
Chapter 3: Current electricity 102-103
107-109
120-124
127-131
3.7 (Partially) Carbon resistors, Colour code for carbon resistor
3.10 Series and parallel combinations of resistors
3.15 Metre Bridge
3.16 Potentiometer
Exercises: 3.3, 3.4, 3.10, 3.12, 3.14 to 3.23
Chapter 4: Moving charges and magnetism 140-142
152-153
162-163
170-172
4.4.1 Velocity Selector
4.4.2 Cyclotron
4.8.2 The Toroid
4.10.3 The magnetic dipole moment of a revolving electron
Exercises: 4.14 to 4.28
 Chapter 5: Magnetism and matter 176-179185-189194-196200-203 5.2.2 Bar Magnet as an Equivalent Solenoid(Qualitative treatment only)5.2.3 The Dipole in an uniform magnetic field (Qualitative treatment only)5.4 Earth’s Magnetism5.41. Magnetic declination and dip5.6.2 (Partially) Curie’s Law5.6.3 (Partially) Curie’s temperature, Hysteresis5.7 Permanent Magnets and ElectromagnetsExercises: 5.1, 5.2, 5.09-5.11, 5.13 to 5.25 Chapter 6: Electromagnetic induction 215-219230-232 6.7 Energy Consideration: A quantitative study6.8 Eddy CurrentsExercises: 6.6, 6.10 to 6.17 Chapter 7: Alternating current 240243246-247249-251255-259266-268 Figure 7.7 magnetisation and demagnetisation of an inductorFigure 7.10 Charging and discharging of a capacitor7.6.2 Analytical solution (of series LCR circuit)7.6.3 Resonance (Partially)–Sharpness of Resonance7.8 LC OscillationsExercises: 7.6, 7.8, 7.10, 7.12 to 7.26 Chapter 8: Electromagnetic waves 276-278287 8.3.2 Nature of electromagnetic waves (Partially)Exercises: 8.11 to 8.15 Chapter 9: Ray opticsand optical instruments 318321-322332-335346 9.3 Refraction (partially)–(advanced sunrise and delayed sunset)9.4.1(i) Mirage9.4.1(ii) Diamond9.7 Some natural phenomena due to sunlight9.7.1 The rainbow9.7.2 Scattering of LightExercises: 9.18
 Chapter 10: Wave optics 358-359363-367368-371358-359372-376379-381383-385 10.3.4 Doppler effect10.5 Interference of Light Waves and Young’s Experiment (partially)10.6 Diffraction (partially)10.6.3 Resolving power of optical instruments10.6.4 Validity of ray optics10.7.1 Polarisation by scattering10.7.2 Polarisation by reflectionExercises: 10.7 to 10.21 Chapter 11: Dual nature of radiation and matter 400-404407-413 11.8 Wave Nature of Matter (Partially)11.9 Davisson and Germer ExperimentAppendix 11.1 The history of wave-particle flip flopExercises: 11.5, 11.7, 11.12 to 11.14, 11.16, 11.17; 11.19 to 11.37 Chapter 12: Atoms 421-422424-426429436-437 12.3.1 Spectral Series12.4 Bohr Model of the Hydrogen Atom (partially)12.5 The Line Spectra of The Hydrogen Atom (partially)Exercises: 12.3, 12.6; 12.11 to 12.17 Chapter 13: Nuclei 446-451452-455462-466 13.6.1 Law of Radioactive decay13.6.2 Alpha decay13.6.3 Beta decay13.6.4 Gamma decay13.7.2 Nuclear ReactorExercises: 13.1, 13.2, 13.6-13.10, 13.12 – 13.14, 13.18, 13.22 to 13.31 Chapter 14: Semiconductor electronics: material devices and simple circuits 485-495497-499 14.8 Special purpose p-n junctionDiodes14.9 Digital Electronics and LogicGatesExercises: 14.7 to 14.15 Chapter 15: Waves 384-387;393-394 Minimum of 8 experiments and 6 activities be performed during the academic year (instead of 15 experiments and 5 activities as being suggested up till 2019-2020)

Class 12 Physics Part 2 Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Chapter 8: Electromagnetic waves 276-278
287
8.3.2 Nature of electromagnetic waves (Partially)
Exercises: 8.11 to 8.15
Chapter 9: Ray optics and optical instruments 318
321-322
332-335
346
9.3 Refraction (partially)–(advanced sunrise and delayed sunset)
9.4.1(i) Mirage
9.4.1(ii) Diamond
9.7 Some natural phenomena due to sunlight
9.7.1 The rainbow
9.7.2 Scattering of Light
Exercises: 9.18
Chapter 10: Wave optics 358-359
363-367
368-371
358-359
372-376
379-381
383-385
10.3.4 Doppler effect
10.5 Interference of Light Waves and Young’s Experiment (partially)
10.6 Diffraction (partially)
10.6.3 Resolving power of optical instruments
10.6.4 Validity of ray optics
10.7.1 Polarisation by scattering
10.7.2 Polarisation by reflection
Exercises: 10.7 to 10.21
 Chapter 11: Dual nature of radiation and matter 400-404407-413 11.8 Wave Nature of Matter (Partially)11.9 Davisson and Germer ExperimentAppendix 11.1 The history of wave-particle flip flopExercises: 11.5, 11.7, 11.12 to 11.14, 11.16, 11.17; 11.19 to 11.37 Chapter 12: Atoms 421-422424-426429436-437 12.3.1 Spectral Series12.4 Bohr Model of the Hydrogen Atom (partially)12.5 The Line Spectra of The Hydrogen Atom (partially)Exercises: 12.3, 12.6; 12.11 to 12.17 Chapter 13: Nuclei 446-451452-455462-466 13.6.1 Law of Radioactive decay13.6.2 Alpha decay13.6.3 Beta decay13.6.4 Gamma decay13.7.2 Nuclear ReactorExercises: 13.1, 13.2, 13.6 to 13.10, 13.12 – 13.14, 13.18, 13.22 to 13.31 Chapter 14: Semiconductor electronics: material devices and simple circuits 485-495497-499 14.8 Special purpose p-n junction Diodes14.9 Digital Electronics and Logic GatesExercises: 14.7 to 14.15 Minimum of 8 experiments and 6 activities be performed during the academic year (instead of 15 experiments and 5 activities as being suggested up till 2019-2020)

Class 12 Chemistry Part 1 Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Unit I: Solid State 1-34 Full Chapter
Unit V: Surface Chemistry 123-148 Full Chapter
Unit VI: General Principles and Processes of Isolation of Elements 149-169 Full Chapter
Unit VII: p-Block Elements 170-214 Full Chapter

Class 12 Chemistry Part 2 Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Unit XV: Polymers 433-446 Full Chapter
Unit XVI: Chemistry in Everyday Life 447-463 Full Chapter

Class 12 Biology Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Chapter 1: Reproduction in
Organisms
3-18 Full Chapter
Chapter 9: Strategies for Enhancement in Food Production 165-176
178
Full Chapter
Chapter 13: Organisms and
Populations
220
221-222
223-225
225-226
13.1 Organism and its Environment
13.1.1 Major Abiotic Factors
13.1.2 Responses to Abiotic Factors
Summary (para 2)
Question No. 1, 2, 3, 9, 10, 11, 12
Chapter 14: Ecosystem 251-252
253-254
254
254-255
255
255
14.6 Ecological Succession
14.6.1 Succession of Plants
14.7 Nutrient Cycling
14.7.1 Ecosystem – Carbon Cycle
14.7.2 Ecosystem – Phosphorus Cycle
14.8 Ecosystem Services
Chapter 16: Environmental Issues 270-286 Full Chapter

Class 12 Mathematics Part 1 Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Chapter 1: Relations and Functions 13-19
19-26
1.4 Composition of Functions and Invertible Function-Examples and Exercise
1.5 Binary Operations
Chapter 2: Inverse Trigonometric Functions 42-48 2.3 Properties of Inverse Trigonometric Functions (Except for few)
Chapter 3: Matrices 90-91
92-97
3.7 Elementary Operations (Transformation) of a Matrix
3.8.1 Inverse of matrices by elementary operations
Chapter 4: Determinants 109-121 4.3 Properties of determinants
Chapter 5: Continuity and
Differentiability
163-166
168-169
184-186
5.3.1 Derivatives of composite functions
5.3.3 Derivatives of inverse trigonometric functions (except for few)
5.8 Mean value theorem
Chapter 6: Application of Derivatives 206-213
213-216
6.4 Tangents and Normal
6.5 Approximations

Class 12 Mathematics Part 2 Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Chapter 7: Integrals 291-292
298-299
313-316
331-334
7.2.1 Geometrical interpretation of indefinite integral
7.2.3 Comparison between differentiation and integration
7.6.3 (Type of integral)
7.7.1 Definite integral as the limit of a sum
Chapter 8: Application of
Integrals
363-365
366-372
8.2.1 The area of the region bounded by a curve and a line
8.3 Area between Two Curves
Chapter 9: Differential Equations 385-391 9.4 Formation of differential equations whose general solution is given
Chapter 10: Vector Algebra 616-619
619-622
10.7 Scalar triple product
10.7.1 Coplanarity of Three Vectors
 Chapter 11: Three Dimensional Geometry 465 – 467469-471479-487487-488488-490490-491492- 494 11.2.1 Relation between the direction cosines of a line11.3.2 Equation of a line passing through two given points11.6 Plane11.7 Coplanarity of two lines11.8 Angle between Two Planes11.9 Distance of a point from a line11.10 Angle between a Line and a Plane Chapter 12: Linear Programming 514-520 12.3 Different Types of Linear Programming Problems Chapter 13: Probability 557-559559-563565-569572- 578 13.6 Random Variables and its Probability Distributions13.6.1 Probability distribution of a random variable13.6.3 Variance of a random variable13.7 Bernoulli Trials and Binomial Distribution

Class 12 Accountancy Part 1 Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Chapter 1: Accounting for
Not-for-Profit Organisation
1-60 Full Chapter
Chapter 2: Accounting for
Partnership-Basic Concepts
252-275 Full Chapter

Class 12 Accountancy Part 2 Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
No Change

Class 12 Business Studies Part 1 Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Chapter 3: Business Environment 87-88, 91-92 Impact of Government policy changes on business and industry, with special reference to adoption of the policies of liberalisation privatisation and globalisation
Chapter 7: Directing 188-190,
204
Chapter 8: Controlling 214-221,
223
Techniques of controlling

Class 12 Business Studies Part 2 Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Chapter 10: Financial Market 252-275 Full Chapter

Class 12 Macroeconomics Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Chapter 6: Open Economy Macroeconomics 95-98 Box 6.2 Exchange Rate Management–International Experience

Class 12 Macroeconomics Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Chapter 6: Non- Competitive Markets 88-101 Full Chapter

Class 12 Psychology Reduced Chapters/ Topics
Chapter Page No. Dropped Chapters/ Topics
Chapter 1: What is Psychology? 13-15,
18-19
Themes of Research and Applications
Psychologists at Work
Chapter 3: The Bases of Human Behaviour 43-63 Full Chapter
Chapter 5: Sensory, Attentional and Perceptual Processes 87-93 Sense modalities (Auditory and Visual Sensation
Chapter 6: Learning 120-121,
122-
123,125-
126, 127-
128
Concept Learning
Transfer of Learning
The Learner: Learning Styles
Applications of Learning Principles
Chapter 7: Human Memory 139-142 Knowledge Representation and Organisation in Memory
Memory as a Constructive Process
Chapter 8: Thinking 162 Reduction in Strategies for Creative Thinking
Chapter 9: Motivation and Emotion 172-173,
175-176,
181-182
Reduction in Biological Motives
Reduction in Maslow’s Hierarchy of Needs (Frustration and Conflict Reduction in Expression of Emotions