Sunday , November 29 2020

# CBSE 10th Topics Removed for 2020-21

CBSE 10th Topics Removed for 2020-21: The Central Board of Secondary recently released the revised syllabus for all subjects of class 10. Board has deleted some portion of the syllabus for the ease of students who will be taking their CBSE Board Exam next year. Due to COVID-19, almost the first four months of this session have already passed in passive learning through self-study, online assignments, or online classes. So, to compensate for the loss of this study period and taking care of the learning outcomes so that the core concepts can be retained for students, CBSE announced a major syllabus reduction for the academic year 2020-21.

Check the list of topics that have been deleted from the original syllabus of CBSE Class 10th. We have provided here the chapter-wise topics that will not be assessed in the Board Exam 2021.

In this article, we are providing a list of the CBSE Class 10th topics that are deleted from the original syllabus. We have collated the chapter-wise topics which students need not prepare for the CBSE Class 10th Board Exam 2020. By knowing the deleted portion of the syllabus, students directly focus on those that are prescribed in the revised syllabus of class 10th. This will help them in carrying out productive study sessions in the remaining part of the current academic year.

## CBSE 10th Topics Removed for 2020-21: Mathematics

### CBSE Class 09 Mathematics (041) – Removed Topics (Theory):

 UNIT I – NUMBER SYSTEMS Chapter Topics REAL NUMBERS Euclid’s division lemma UNIT II – ALGEBRA Chapter Topics POLYNOMIALS Statement and simple problems on division algorithm for polynomials with real coefficients. PAIR OF LINEAR EQUATIONS IN TWO VARIABLES cross multiplication method QUADRATIC EQUATIONS Situational problems based on equations reducible to quadratic equations ARITHMETIC PROGRESSIONS Application in solving daily life problems based on sum to n terms UNIT III – COORDINATE GEOMETRY Chapter Topics COORDINATE GEOMETRY Area of a triangle UNIT IV – GEOMETRY Chapter Topics TRIANGLES Proof of the following theorems are deleted The ratio of the areas of two similar triangles is equal to the ratio of the squares of their corresponding sides. In a triangle, if the square on one side is equal to sum of the squares on the other two sides, the angle opposite to the first side is a right angle. CIRCLES No Deletion CONSTRUCTIONS Construction of a triangle similar to a given triangle. UNIT V – TRIGONOMETRY Chapter Topics INTRODUCTION TO TRIGONOMETRY Motivate the ratios whichever are defined at 0o and 90o TRIGONOMETRIC IDENTITIES Trigonometric ratios of complementary angles HEIGHTS AND DISTANCES No deletion UNIT VI – MENSURATION AREAS RELATED TO CIRCLES Problems on central angle of 120° SURFACE AREAS AND VOLUMES Frustum of a cone UNIT VI – STATISTICS & PROBABILITY Chapter Topics STATISTICS Step deviation Method for finding the mean Cumulative Frequency graph PROBABILITY No deletion

## Topics Removed for 2020-21: Science

Check the CBSE Class 10 Science deleted syllabus here. Know the chapter-wise topics that have been removed from the syllabus for the academic session 2020-2021.

### CBSE Class 10 Science (086) – Removed Topics:

 Unit I: Chemical Substances – Nature and Behavior Chapter Topics Metals and Non-metals Basic metallurgical processes; Corrosion and its prevention. Carbon Compounds Nomenclature of carbon compounds containing functional groups (halogens, alcohol, ketones, aldehydes, alkanes and alkynes), difference between saturated hydro carbons and unsaturated hydrocarbons. Chemical properties of carbon compounds (combustion, oxidation, addition and substitution reaction). Ethanol and Ethanoic acid (only properties and uses), soaps and detergents. Unit II: World of Living Chapter Topics Control and co-ordination in animals and plants (Whole Chapter Removed) Tropic movements in plants; Introduction of plant hormones; Control and co-ordination in animals: Nervous system; Voluntary, involuntary and reflex action; Chemical co-ordination: animal hormones Heredity and Evolution Basic concepts of evolution Unit III: Natural Phenomena Chapter Topics The Human Eye and the Colourful World Functioning of a lens in human eye, defects of vision and their corrections, applications of spherical mirrors and lenses Unit IV: Effects of Current Chapter Topics Magnetic Effects of Current : Electric Generator, Direct current. Alternating current: frequency of AC, Advantage of AC over DC. Domestic electric circuits Unit V: Natural Resources Chapter Topics Sources of Energy (Whole Chapter Deleted) Different forms of energy, conventional and non-conventional sources of energy: Fossil fuels, solar energy; biogas; wind, water and tidal energy; Nuclear energy. Renewable versus non-renewable sources of Energy. Management of Natural Resources (This chapter is to be prepared only for Internal Assessment. It will not be assessed in the Annual Board Examination) Conservation and judicious use of natural resources. Forest and wild life; Coal and Petroleum conservation. Examples of people’s participation for conservation of natural resources. Big dams: advantages and limitations; alternatives, if any. Water harvesting. Sustainability of natural resources.

## Topics Removed for 2020-21: Social Science

Check the CBSE Class 10 Social Science deleted syllabus here. Know the chapter-wise topics that have been removed from the syllabus for the academic session 2020-2021.

### CBSE Class 10 Science (087) – Removed Topics:

 UNIT 1: INDIA AND THE CONTEMPORARY WORLD –II (HISTORY) Chapter No. and Chapter Name (NCERT Textbook) Recommended Portion for deletion Section 2: Livelihoods, Economies and Societies NOTE – ANY ONE OUT OF THESE TWO CHAPTERS (CH-3 / CH4) Chapter 3: The Making of a Global World Chapter 4: The Age of Industrialization The chosen Chapter to be assessed in the Periodic Tests and not in Board Examination. Section 3: Everyday Life, Culture and Politics Chapter 5: Print Culture and the Modern World Complete Chapter UNIT 2: CONTEMPORARY INDIA – II (GEOGRAPHY) Chapter No. and Chapter Name (NCERT Textbook) Recommended Portion for deletion Chapter 2: Forest and Wildlife Complete Chapter Chapter 3: Water Resources Complete Chapter except for Map Items which will be assessed in the Examination Chapter 5: Mineral and Energy Resources Complete Chapter except for Map Items which will be assessed in the Examination UNIT 3: DEMOCRATIC POLITICS –II (POLITICAL SCIENCE) Chapter No. and Chapter Name (NCERT Textbook) Recommended Portion for deletion Chapter 3: Democracy and Diversity Complete Chapter Chapter 4: Gender, Religion and Caste Complete Chapter Chapter 5: Popular Struggles and Movements Complete Chapter Chapter 8: Challenges to Democracy Complete Chapter

## Topics Removed for 2020-21: English

Check the CBSE Class 10 English deleted syllabus here. Know the chapter-wise topics that have been removed from the syllabus for the academic session 2020-2021.

### CBSE Class 10 English Language and Literature (086) – Removed Topics (Theory):

#### Grammar

• Use of Passive Voice
• Clauses: Noun, Adverb Clauses of condition and time, Relative
• Prepositions
• FIRST FLIGHT – Text for Class X

#### Literature

FIRST FLIGHT

1. How to Tell Wild Animals
2. Trees
3. Fog
4. Mijbil the Otter
5. For Anne Gregory

FOOTPRINTS WITHOUT FEET

1. The Midnight Visitor
2. A Question of Trust
3. The Book That Saved The Earth

## Understanding Media: NCERT 7 Class CBSE SST Civics 06

Understanding Media: NCERT 7th CBSE Social Studies Civics Chapter 06 Question: What is called ‘media’? Answer: Everything …