NCERT Class 9 Books Revised for 2022-23: Check List of Deleted Chapters & Topics from Textbooks – Jagran Josh

NCERT Books for Class 9 have been rationalised and reprinted for the current academic session 2022-2023. Check here the list of rationalised content (deleted chapters/topics) in Class 9 NCERT Books. Download new books in PDF.
List of Rationalised Content in NCERT Books for Class 9: The National Council of Educational Research and Training (NCERT) has reprinted and published the new editions of class 9 books after rationalising the content of the books. Contents of the textbooks have been rationalised in view of overlapping with similar content included in other subject areas in the same class and similar content included in the lower or higher class in the same subject. Another factor taken into consideration was to check the difficulty level of the content. Thus, some of the significant chapters or topics have been deleted from the Class 9 NCERT Books. We have provided here the list of the chapters and topics removed from the class 9 books along with their respective page numbers. We have also provided below the links to download the new editions of the NCERT Books for Class 9 which have been reprinted for the current academic session, 2022-2023.
Chapter
Page No.
Dropped Topics/Chapter
Chapter 1: Number Systems
15–18
27
1.4 Representing real numbers on the number line
Chapter 2: Polynomials
35–40
50
2.4 Remainder theorem
Chapter 3: Coordinate Geometry
61–65
3.3 Plotting a point in the plane if its coordinates are given
Chapter 4: Linear Equations in Two Variables
70–75
4.4 Graph of linear equations in two variables
 
75–77
4.5 Equations of lines parallel–x–axis and y–axis
Chapter 5: Introduction– Euclidean Geometry
86–88
 5.3 Equivalent versions of Euclid’s fifth postulate
Chapter 6: Lines and Angles
98–100
103
105–108
6.5 Parallel lines and a transversal
6.7 Angle sum property of a triangle
Chapter 7: Triangles
129–134
7.6 Inequalities in triangles
Chapter 8: Quadrilaterals
135–138
8.1 Introduction
8.2 Angle sum property of a quadrilateral
 
145–147 151
8.3 Types of quadrilaterals
8.5 Another condition for a Quadrilateral–be a parallelogram
Chapter 9: Areas of Parallelogram and Triangles
152–167
Full chapter
Chapter 10: Circles
168
10.1 Introduction
 
169–171
10.2 Circles and its related terms: Review
 
174–176
186–187
Circle through three points
Chapter 11: Construction
188–196
Full chapter
Chapter 12: Heron’s Formula
197–199
203–207
12.1 Introduction
12.3 Application of Heron’s formula in finding areas of quadrilaterals
Chapter 13: Surface Area and Volume
208–217
13.1 Introduction
13.2 Surface area of a cuboid and cube
 
226–231
13.3 Surface area of right circular cylinder
 
236–237
13.6 Volume of cuboid
13.7 Volume of cylinder
Chapter 14: Statistics
238–246
261–270
14.1 Introduction
14.2 Collection of data
14.3 Presentation of data
14.5 Measure of central tendency
14.6 Summary
Chapter 15: Probability
271–285
Full chapter
Answers
326
328
330–345
347
Answers of Exercises
Chapter
Page No.
Dropped Topics/Chapter
Chapter 1: Matter in Our Surroundings
10
Box item titled ‘Plasma and Bose–Einstein Condensate’
Chapter 2: Is Matter Around Us Pure?
19–24
2.3 Separating the components of a mixture
2.3.1 How can we obtain coloured component (dye) from blue/ black ink?
2.3.2 How can we separate cream from milk?
2.3.3 How can we separate a mixture of two immiscible liquids?
2.3.4 How can we separate a mixture of salt and camphor?
2.3.5 Is the dye in black ink a single colour?
2.3.6 How can we separate a mixture of two miscible liquids?
2.3.7 How can we obtain different gases from air ?
2.3.8 How can we obtain pure copper sulphate from an impure sample?
Chapter 3: Atoms and Molecules
40–42
Mole concept
Chapter 7: Diversity in Living Organisms
80–97
 Full chapter
Chapter 9: Force and Laws of Motion
 123–127
9.6 Conservation of Momentum
Activity 9.5, 9.6
Example 9.6, 9.7, 9.8
Box item ‘Conservation Laws’
Chapter 10: Gravitation
 133, 142
Following Box Items: a. Brief Description of Isaac Newton
b. How did Newton guess the inverse–square rule?
10.7 Relative Density
Example 10.7
Chapter 11: Work and Energy
156
11.3.1 Commercial Unit of Energy
Chapter 12: Sound
161,162,
167, 171
and 172
Box item titled ‘Can sound make a light spot dance?’ Box item titled ‘Sonic Boom’ 12.2.1 Sound Needs a Medium– Travel 12.5.1 Sonar 12.6 Structure of Human Ear
Chapter 13: Why Do We Fall Ill?
176–188
Full chapter
Chapter 14: Natural Resources
189–202
Full chapter
India and the Contemporary World-I
No Changes
Contemporary India-I
Chapter
 Page No.
Dropped Topics/Chapter
Chapter 4: Climate
28, 29, 30, 31, 36
Jet streams, western cyclonic disturbances, The Indian Monsoon, the onset of the monsoon and withdrawal and related Figs 4.1, 4.2, 4.3, 4.6
Chapter 5: Natural Vegetation and Wildlife
42–44
Factors affecting the diversity of flora and fauna Fig 5.1 and Table 5.1
Chapter 6: Population
53, 58, 59, 60, 61
Pointers regarding three major questions about population, age composition, sex ratio, literacy rates, occupational structure, health, NPP 2000 and adolescents
Economics
No Changes
Democratic Politics-I
No Changes
Information and Communication Technology
No Changes
We have provided below the link to access the new editions of the Class 9 NCERT Books that have been reprinted and published exclusively for the current academic session (2022-2023). Click on the link to get the latest books and prepare for your CBSE Class 9 Annual Exam 2022-23 in an effective manner.
 
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