CHSE Odisha Science Syllabus 2020-21 PDF

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CHSE Odisha Science Syllabus 2020-21

CHSE, Odisha has reduced the Class 12 syllabus for Science, Arts, and Commerce by 30 percent due to the COVID pandemic. The reduced Odisha 12th 2020-21 syllabus is available on this page and official website, Students must know the importance of CHSE Odisha syllabus 2021 and how they should use it. Odisha 12th syllabus provides the entire course structure for 3 streams, Science, Arts, and Commerce.

CHSE Odisha Syllabus 2020-21 mentions all the streams and subjects with complete details of topics and marking scheme. Reading and understanding complete Odisha 12th syllabus 2020-21 leaves out any scope for confusion related to the textbooks, chapters, and topics.

CHSE Odisha English Syllabus 2020-21


Topics / chapters


My Greatest Olympic Prize

On Examinations

The Portrait of a Lady



The Ballad of Father Gilligan

A Psalm of Life

Non-detailed study

The Doctor’s Word

Stay Hungry. Stay Foolish

Mystery of the Missing Cap

Writing Skills

Interpreting Graph, Charts, Tables and diagrams etc

Reporting Events and Business Matters

Extended Writing


The Passive

Direct and Reported Speech


Phrasal Verbs

CHSE Odisha Chemistry Syllabus 2020-21




Solid State

Classification of solids based on different binding forces

Amorphous and crystalline solids.

Unit cell in two dimensional and three-dimensional lattices, calculation of density of unit cell,

Packing in solids, packing efficiency, voids, number

of atoms per unit cell in a cubic unit cell.

Point defects, electrical and magnetic properties.

Band theory of metals, conductors, semiconductors and insulators and n & p-type semiconductors.



Types of solutions, expression of concentration of solutions of solids in liquids, solubility of gases in liquids

solid solutions, colligative properties.

Relative lowering of vapour pressure, Raoult’s law, elevation of boiling point, depression of freezing point, osmotic pressure, determination of molecular masses using colligative


abnormal molecular mass, van Hoff factor


Redox reactions, electrolytes and non-electrolyte conductor, conductance in electrolytic solutions,

Specific and molar conductivity, variation of conductivity with concentration,

Kohlrausch’s Law, electrolysis and laws of electrolysis.

Dry cell electrolytic cells and Galvanic cells, lead accumulator,

EMF of a cell, standard electrode potential, Nernst equation and its application to chemical cells,

Relation between Gibbs energy change and emf of a cell, fuel cells, corrosion.

Chemical Kinetics

Rate of a reaction, factors affecting the rate of reaction,

Order and molecularity of a reaction, rate law and specific rate constant, integrated rate equations and half-life,

Concept of collision theory. Activation energy, Arrhenius equation.


Surface Chemistry

Adsorption – physisorption and chemisorption, factors affecting adsorption of gases on solids, catalysts.

homogenous and heterogenous activity and selectivity.

True solutions, colloids and suspensions.

properties of colloids; Tyndall effect, Brownian movement, electrophoresis, coagulation.

Emulsion- types of emulsions.

General Principles and Processes of Isolation of Elements

Principles and methods of extraction.

concentration, oxidation, reduction.

electrolytic method and refining.

occurrence and principles of extraction of aluminium, copper, zinc and iron.

p – Block Elements

Group15, Group 17 and Group 18 Elements-

General introduction, electronic configuration, occurrence, properties, classification, preparation of different compounds and their use.

d and f Block Elements

General introduction, electronic configuration, occurrence and characteristics of transition metals,

General trends in properties of the first-row transition metals – metallic character, ionization enthalpy, oxidation states, ionic radii, colour, catalytic property, magnetic properties, interstitial compounds, alloy formation,

preparation and properties of K2CrO7 and KMnO

Coordination Compounds

Coordination compounds – Introduction, ligands, coordination number, colour, magnetic properties and shapes.

IUPAC nomenclature of mononuclear coordination compounds.

Bonding, Werner’s theory.

VBT and CFT- structure and stereoisomerism.

Importance of coordination compounds.


Haloalkanes and Haloarenes


Nomenclature, nature of C-X bond, physical and chemical properties, mechanism of substitution

reactions, optical rotation.


Nature of C – X bond, substitution reactions.

Uses and environmental effects of dichloromethane, trichloromethane, tetrachloromethane, iodoform, freons, DDT, BHC.

Alcohols, Phenols and Ethers


Nomenclature, methods of preparation, physical and chemical properties, identification of primary, secondary and tertiary alcohols, mechanism of dehydration, uses with special reference to methanol and ethanol.


Nomenclature, methods of preparation, physical and chemical properties, acidic nature of phenol, electrophilic substitution reactions, uses of phenols.


Nomenclature, methods of preparation, physical and chemical properties uses

Aldehydes, Ketones and Carboxylic Acids

Nomenclature, methods of preparation, physical and chemical properties, mechanism of nucleophilic addition, reactivity of alpha hydrogen in aldehydes uses, uses of carboxylic acids.

Organic compounds containing Nitrogen

Nomenclature classification, structure, methods of preparation, physical and chemical properties,

Uses, identification of primary, secondary and tertiary amines.

Diazonium salt


Classification- polymerization, co-polymerization,

some important polymers-

polythene, nylon, polyester, bakelite, rubber.

Biodegradable and non-biodegradable polymers.

Chemistry in Everyday life

Chemical in Medicines-

Analgesics, tranquilizers antiseptics, disinfectants, antimicrobials, antifertility, drugs,

antibiotics, antacids, antihistamines.

Chemical in Food- Preservatives, artificial sweetening agents, elementary idea of antioxidants

Cleansing agents-Soap and detergents, cleansing action.

Total marks


CHSE Odisha Biology Syllabus 2021




Reproduction in organisms.

Reproduction, Modes of reproduction

Sexual reproduction in flowering plants

Flower structure, Development of male and female gametophytes, Pollination-types, Double fertilization, Development of endosperm and embryo, Development of seed and formation of fruit, Significance of seed and fruit formation etc.

Human Reproduction

Male and female reproductive systems, Gametogenesis, Menstrual cycle, Fertilisation, embryo development, Pregnancy and placenta formation etc.

Reproductive health

Need for reproductive health and prevention of sexually transmitted diseases, Birth control, Infertility and assisted reproductive technologies etc.

Genetics and Evolution

Heredity and Variation

Mendelian Inheritance, Pleiotropy, Elementary idea of polygenic inheritance, Chromosome theory of inheritance, linkage and crossing over etc.

Sex determination

In humans, birds, honey bee, Sex-linked inheritance, Mendelian disorders in humans, Thalassemia, Chromosomal disorders in humans.

Molecular Basis of Inheritance

Structure of DNA and RNA, DNA packaging; DNA replication, Gene expression and regulation- Lac Operon, human genome project; DNA fingerprinting.


Origin of life, Darwinism, Modern Synthetic theory of Evolution, Mechanism of evolution, Natural Selection with examples, types of natural selection, Hardy-Weinberg’s principle, Adaptive Radiation; Human evolution etc

Biology and Human Welfare

Health and Disease- Pathogens; parasites causing human diseases, Basic concepts of immunology- vaccines; Cancer, HIV and AIDS, Adolescence, drug and alcohol abuse.

Improvement in food production

Microbes in human welfare- In household food processing, industrial production, sewage treatment, energy generation and as biocontrol agents and biofertilizers.

Biotechnology and its Applications

Principles and process of Biotechnology

Genetic engineering (Recombinant DNA technology)

Application of Biotechnology in health and agriculture

Human insulin and vaccine production, gene therapy, Genetically modified organisms- Bt crops, Transgenic Animals, Biosafety issues- Biopiracy and patents.

Ecology and environment

Organisms and environment- Habitat and niche, Population and ecological adaptations, interactions-mutualism, competition, predation, parasitism, Population attributes etc.

Biodiversity and its conservation – Concept of Biodiversity, Importance of Biodiversity. conservation; Hotspots, endangered organisms, extinction, Red Data Book. Biosphere reserves, National parks and Sanctuaries.

Odisha CHSE Physics Syllabus 2021




Electric charges and fields

Electric charge and its quantization, conservation of charge, Coulomb’s law, force between two point charges, superposition principle, etc.


Electrostatic potential and capacitance

Electric potential, potential difference, potential due to a dipole, potential due to a system of charges, Equipotential surfaces, electrical potential energy, Conductors, insulators, free charges and bound charges inside a conductor, capacitors and capacitance, combination of capacitors in series and in parallel energy sorted in a capacitor etc.

Current Electricity

Electric current, drift velocity, Ohm’s law, electrical resistance, conductance, resistivity, conductivity, effect of temperature on resistance, electrical energy and power, carbon resistors, colour code of carbon resistor, EMF and potential difference, internal resistance of a cell, combination of cells in series and parallel, Kirchhoff’s law, Potentiometer-Principle and its application, EMF of two cell, etc.

Magnetic effect of Current and magnetism

Moving charges and magnetism

Concept of magnetic field, Oersted’s experiment, Biot-Savart law , Ampere’s law and its application, Straight and toroidal solenoid, Cyclotron.

Force on a current carrying conductor in a uniform magnetic field, force between two parallel current carrying conductors, , torque experienced by a current loop, moving coil galvanometer, and conversion of current from ammeter and voltmeter


Magnetism and matter

Current loop as a magnetic dipole and its magnetic dipole moment, magnetic dipole moment of a revolving electron, magnetic field intensity due to a magnetic dipole, torque on a magnetic dipole, bar magnet as an equivalent solenoid, magnetic field lines etc.

Electromagnetic induction and Alternating current

Electromagnetic induction

Faraday’ laws of electromagnetic induction, induced EMF and current, Lenz’s Law, Eddy currents, self and mutual induction.

Alternating Current

Alternating currents, peak and RMS value of alternating current, LC oscillation, LCR series circuit, resonance, power in AC circuits, wattless current, A.C. generator and transformer, etc.

Electromagnetic waves

Basic idea of displacement current, characteristics of electromagnetic waves, their transverse nature.

Electromagnetic spectrum and their uses.



Ray optics and optical instruments

Reflection of light, spherical mirrors, mirror formula, lateral and longitudinal magnification.

total internal reflection and its applications, optical fibre, Refraction at spherical surfaces.

lens formula, lens makers formula, magnification, power of lenses, two thin lenses in contact, etc.

Scattering of light

Blue colour of the sky and reddish appearance of sun at sunset and sunrise, Optical instruments: microscopes and telescopes

Waves Optics

Wave front, Huygen’s principle, reflection and refraction of plane waves, proof of laws of reflection and refraction using Huygen’s principle, Interference, Young’s double slit experiment, resolving power of microscope and astronomical telescope, polarization, Brewster’s law, uses of plane polarized light and polaroids, etc.

Dual nature of Radiation and matter

Dual nature of radiation, Photoelectric effect, Hertz and Lenard’s observations, Einstein’s photoelectric equation.

Matter waves, de-Broglie relation, Davisson- Germer experiment etc.


Atoms and Nuclei


Rutherford’s model of atom, Bohr model, energy levels, hydrogen spectrum.


Atomic nucleus, nature of nuclear force, binding energy per nucleon, nuclear fission, fusion, Radioactivity, alpha, beta and gamma particles, radioactive decay law, half life and decay constant.

Semiconductor electronics

Energy bands in conductors, semiconductors and insulators, p-type, n type semiconductors, semiconductor diode, V-I characteristics, diode etc.

Special purpose p-n junction diodes, Zener diode as a voltage regulator, etc.

Junction transistor, transistor action, Logic gates (OR, AND, NOT, NAND, and NOR), basic idea of analog and digital signals, etc.


Communication System

Elements of a communication system, bandwidth of signals, bandwidth of transmission medium, propagation of electromagnetic waves in the atmosphere, sky and space wave propagation, satellite communication, modulation, a basic idea about internet, mobile telephony and GPS.

Total marks


Odisha CHSE Maths Syllabus 2021




Relations and Functions

Relations and Functions

reflexive, symmetric, transitive and equivalence relations, composite functions, inverse of a function. Binary operations etc.

Inverse Trigonometric Functions

Definition, range, domain, Graphs of inverse trigonometric functions. Elementary properties of inverse trigonometric functions etc.

Linear Programming

Introduction, different types of linear programming (L.P.) problems, graphical method of solution for problems in two variables, feasible and infeasible regions, feasible and infeasible solutions, optimal feasible solutions, etc.




Concept, notation, order, equality, types of matrices, operations on matrices, Addition and multiplication and multiplication with a scalar, Non-commutativity of multiplication of matrices, concept of elementary row and column operations, Invertible matrices and proof of the uniqueness of inverse.


Determinant of a square matrix, properties of determinants, applications of determinants in finding the area of a triangle, Adjoint and inverse of a square matrix, solving systems of linear equations in two or three variables etc.


Conditional probability, multiplication theorem on probability, total probability, Baye’s theorem, Random variable, mean and variance of a random variable, Bernoulli trials and Binomial distribution.


Differential Calculus

Continuity and Differentiability

derivative of composite functions, derivatives of inverse trigonometric functions, derivative of implicit functions, Concept of exponential and logarithmic functions.

derivative of functions expressed in parametric forms. Second-order derivatives etc.

Applications of Derivatives

Rate of change of bodies, increasing and decreasing functions, tangents and normals, maxima and minima, use of derivatives in approximation.


Integral Calculus


Integration as an inverse process of differentiation, Integration by substitution, by partial fractions and by parts, Evaluation of simple integrals, Fundamental Theorem of Calculus.

Applications of the Integrals

Applications in finding the area under simple curves, Area between curves.

Differential Equations

Definition, order and degree, Formation of differential equation whose general solution is given, solutions of homogeneous differential equations of first order and first degree etc.


Vectors and Three-Dimensional Geometry


Vectors and scalars, Types of vectors, multiplication of a vector by a scalar, position vector of a point dividing a line segment in a given ratio, products of vectors.

Three – dimensional Geometry

Direction cosines and direction ratios of a line joining two points, Cartesian equation and vector equation of a line, types of lines, the shortest distance between two lines, Cartesian and vector equation of a plane, Angle between three- dimensional elements, etc.




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