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Home Education Chemistry Class 11 CBSE 2020-21: NCERT Chemistry Class 11 Syllabus: Students Read

Chemistry Class 11 CBSE 2020-21: NCERT Chemistry Class 11 Syllabus: Students Read

CBSE Syllabus For Class 11 Chemistry 2020-21: Class 11 is considered to be an essential step in secondary education. 11th grade is all about laying support for questions to come in Class 12 Board exams as well as competitive entry tests. Therefore, it’s important that you completely understand Class 11 topics to promote your study.

Therefore, we suggest you take a deep sigh, look strictly at your CBSE Chemistry Class 11 Syllabus, make a study treatment and eye your target. It will help you develop your mindset to understand what is taught in your classes. Revising the knowledge every day will surely help you cope with all the challenges that you can come your way. In this article, we will take a look into the full Chemistry Class 11 CBSE so that you can start your structures early.


Chemistry Class 11 CBSE Reduced Upto 30%

Due to the Covid-19 prevailing conditions in the country, the officials of CBSE forward with the Union HRD Minister have determined to reduce the course load. The officials have succeeded the syllabus of Grade 11 CBSE 2020-21 including the Class 11 Chemistry Syllabus by up to 30%. It was also stated that core concepts have not been deleted, only some parts of the chapter have been forbidden from the Class 11 Chemistry Syllabus.

The Chemistry Class 11 CBSE encompasses both Theory and Practical. The theory exam carries 70 marks while the possible exam is held for 30 marks.

 In this section, we will embrace the Chemistry Class 11 CBSE syllabus of both Theory & Practical.


Syllabus For Chemistry Class 11 CBSE

As stated above, the system exam of CBSE Class 11 Chemistry carries 70 marks. The total time maintenance of the exam is three hours. Class 11 Chemistry includes 13 chapters:





Chapter-1: Some Basic Concepts of Chemistry

Chapter-2: Structure of Atom



Chapter-3: Classification of Elements and Periodicity in Properties



Chapter-4: Chemical Bonding and Molecular Structure

Chapter-5: States of Matter: Gases and Liquids

Chapter-6: Chemical Thermodynamics

Chapter-7: Equilibrium



Chapter-8: Redox Reactions

Chapter-9: Hydrogen

Chapter-10: s-Block Elements

Chapter-11: p-Block Elements



Chapter-12: Organic Chemistry – Some Basic Principles and Techniques

Chapter-13: Hydrocarbons






Let us now look into the aspects of the CBSE Syllabus for Class 11 Chemistry Theory.


Unit 1: Some Basic Concepts Of Chemistry


General Introduction: Importance and scope of Chemistry. Atomic and molecular masses, empirical and molecular formula, percentage composition, chemical reactions, mole concept and molar mass, stoichiometry, and calculations based on stoichiometry.

Unit 2: Structure Of Atom


Bohr’s model and its limitations, the concept of shells and subshells, dual nature of matter and light, the concept of orbitals, quantum numbers, Heisenberg uncertainty principle, shapes of s, p and d orbitals, electronic configuration of atoms, de Broglie’s relationship, rules for filling electrons in orbitals – Aufbau principle, Pauli’s exclusion principle and Hund’s rule, stability of half-filled and filled orbitals.


Unit 3: Classification Of Elements & Periodicity In Properties


Modern periodic law and the present form of the periodic table, periodic trends in properties of elements -atomic radii, Ionization enthalpy, electronegativity, ionic radii, electron gain enthalpy, valency.

Unit 4: Chemical Bonding And Molecular Structure


Valence electrons, ionic bond, covalent bond, Lewis structure, bond parameters, the polar character of covalent bond, the covalent character of ionic bond, the geometry of covalent molecules, valence bond theory, involving s, resonance, VSEPR theory, the concept of hybridization, molecular orbital theory of homonuclear diatomic molecules(qualitative idea only), p and d orbitals, and shapes of some simple molecules, Hydrogen bond.


Unit 5: States Of Matter – Gases & Liquids


Three states of matter, intermolecular interactions, the role of gas laws in elucidating the concept of the molecule, Gay Lussac’s law, Avogadro’s law, ideal behavior, empirical derivation of gas equation, types of bonding, Avogadro’s number, ideal gas equation and deviation from ideal behavior.


Unit 6: Chemical Thermodynamics


Concepts of Systems and types of systems, work, heat, energy, surroundings, extensive and intensive properties, state functions. The first law of thermodynamics -internal energy and enthalpy, Hess’s law of constant heat summation, measurement of U and H, enthalpy of bond dissociation, formation, sublimation, phase transition, atomization, ionization, combustion, solution, and dilution. Second law of Thermodynamics (brief introduction) Book of entropy as a state function, Gibb’s current change for natural and nonspontaneous methods. Third rule of thermodynamics.


Unit 7: Equilibrium


Equilibrium in physical and chemical processes, the law of mass action, equilibrium constant, factors affecting equilibrium – Le Chatelier’s principle, ionic equilibrium- ionization of acids and bases, strong and weak electrolytes, degree of ionization, ionization of polybasic acids, buffer solution, dynamic nature of equilibrium, acid strength, the concept of pH, solubility product, common ion effect (with illustrative examples).

Unit 8: Redox Reaction


Concept of oxidation and reduction, redox reactions, balancing redox reactions, in terms of loss and gain of electrons, oxidation number, and change in oxidation number.

Unit 9: s-block Elements


Group 1 and Group 2 Elements General introduction, occurrence, anomalous properties of the first element of each group, diagonal relationship, trends in the variation of properties (such as ionization enthalpy), electronic configuration, trends in chemical reactivity with oxygen, hydrogen, and halogens, water, use.


Unit 10: p-Block Elements


General Introduction to p -Block Elements

Group 13 Elements: General introduction, occurrence, variation of properties, oxidation states, anomalous properties of the first element of the group, electronic configuration, trends in chemical reactivity, Boron – physical and chemical properties.

Group 14 Elements: General introduction, occurrence, variation of properties, oxidation states, electronic configuration, trends in chemical reactivity, anomalous behavior of first elements. allotropic forms, Carbon-catenation, physical and chemical properties.


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