Updated and Reduced Syllabus for Chemistry Class 11 CBSE: 2021

The Chemistry Class 11 CBSE is reduced by 30% and Students can take the compressed and updated syllabus from here. The CBSE Chemistry Exams may be held in March 2020-21. The practical exams will also be conducted by CBSE affiliated organizations for conceptual assessment. The result of the CBSE class 11th chemistry exams will depend on student’s reasoning, judgment, and evaluation skills. 

Updated Chemistry Subject for Class XIth :

If you are interested in finding the core structure of any element or something nearby you then you should opt for the chemistry subject in class XI. This is one of the expected subjects of the Science stream. The new modernized syllabus of CBSE class XI the Chemistry grants students the to

  1. Get acquainted with the newly developed areas like industrial chemistry, biomolecules, natural reserves, synthetic materials.
  2. Students also get familiar with units of physical standards floated by scientific bodies like IUPAC and CGPM and New formulations and analyses of elements and compounds, symbols.
  3. Due to the Covid-19 crisis, many new updated materials have been separated for the 2021 examinations. Students should get the decreased syllabus is only for the 2021 march exams. 


Chemistry Syllabus Scope:

The refined and regular  Chemistry syllabus will be comprised in NCERT Books. Students can download NCERT chapters in PDF format for the Class 11th Chemistry Syllabus from next. Students who opted for Chemistry in class 11th will stay with the identical subject in class XII also. Students who have an expense in chemistry subject can explore professional results after 12th exams in any of the following general areas:

  1. Bioscientist
  2. Scientists, 
  3. Space scientists,
  4. Medical researcher
  5. Atomic Researchers
  6. Chemical engineers
  7. Engineers
  8. Adulteration Inspector

CBSE Class XIth Chemistry Reduced Syllabus 2020-21 

As we know Class XIth and XII syllabus for 2021 exams is decreased to 30%. Students can download the newly updated and designed syllabus from Here. 

VSI provides CBSE class XIth syllabus of Stories, Economics, Maths, Physics, Chemistry, English, and all the issues of arts, commerce, and ability students. The reduction in the program will be applicable only for annual exams of 2021-2022. We are offering the latest updates and a limited syllabus here for our readers. 

  • Some Basic Concepts of Chemistry
    • General Introduction: Importance and discipline of Chemistry.
    • Atomic and molecular masses, mole method and molar mass, percentage composition, experimental and molecular method, chemical reactions, stoichiometry, and calculations based on stoichiometry.
    • Deleted portion: Nature of matter, Dalton’s nuclear theory, laws of chemical combination: the concept of elements, atoms, and molecules.


Structure of Atom:

  • de Broglie’s relationship,
  • Heisenberg theory principle,
  • Bohr’s model and its faults,
  • concept of orbitals,
  • Pauli’s exclusion policy and Hund’s rule,
  • quantum numbers, aspects of s, p, and d orbitals
  • electronic arrangement of atoms,
  • stability of half-filled and filled orbitals
  • Deleted Topics: Discovery of Electron, and Neutron, atomic number, isotopes, Proton, and isobars. Thomson’s model and its limitations. Rutherford’s model and its modifications


Analysis of Elements and Periodicity in Properties

  • modern periodic law and the existing form of the periodic table,

Chemical Bonding and Molecular Structure

  • Valence electrons, covalent bond, ionic bond, bond parameters,
  • valence bond theory, the geometry of covalent fragments,
  • the molecular orbital approach of homonuclear diatomic molecules Hydrogen bond.

States of Matter: Gases and Fluids

ideal behavior, empirical source of the gas equation,

Avogadro’s number, Deviation from exemplary behavior

 ideal gas equation.

Deleted Portions: liquefaction of gases, kinetic energy and molecular activities (elementary idea), viscosity, critical temperature, Liquid State- vapor pressure, and surface tension (qualitative idea only, no mathematical derivations)

Chemical Thermodynamics

  • Concepts of Systems and models of systems work, surroundings, energy, heat, extensive and intense properties.
  • The first law of thermodynamics -internal energy and enthalpy, range of U and H, enthalpy of bond dissociation, Hess’s law of continuous heat summation, formation, atomization, flaming, sublimation, phase transition, ionization, solution, and dilution.
  • Third law of thermodynamics.
  • Deleted Topics: heat capacity and specific heat.



  • Position of hydrogen in the periodical table,
  • occurrence, isotopes,

heavy water,

  • hydrogen as a fuel
  • s -Block Elements

Deleted Topics: Preparation and Properties of Some Related Compounds: Sodium Carbonate, Sodium Hydroxide, and Sodium Hydrogen carbonate. Calcium Oxide and Calcium Carbonate and their industrial uses, the vital importance of Magnesium and Calcium.


Some p -Block Elements

  • Group 13 Elements: General meeting, electronic configuration, variation of parts, oxidation states, trends in chemical reactivity
  • Boron – physical and chemical features,
  • Group 14 Elements: General introduction, electronic configuration, occurrence, oxidation states, trends in chemical reactivity, anomalous behavior of first elements. Carbon-catenation, physical and chemical properties;
  • uses of some related compounds:
  • oxides.
  • Deleted Topics: some related composites: Borax, Boron Hydrides, Aluminium:
  • Silicon Tetrachloride, and Zeolites, their uses.


Organic Chemistry: Some Basic Principles and Methods

  • General presentation,
  • classification, and IUPAC group of organic syntheses.
  • Electronic displacements in a covalent addition: inductive effect, electromeric effect, and hyperconjugation.
  • Homolytic and heterolytic splitting of a covalent linkage: free radicals, electrophiles, and nucleophiles, types of nuclear reactions.
  • Deleted Topics: methods of cleaning, and quantitative investigation,


Hydrocarbons Environmental Chemistry

  • Distribution of Hydrocarbons Aliphatic Hydrocarbons:
  • Alkanes – conformation (ethane only), physical properties, chemical reactions
  • Alkenes – Nomenclature, the structure of double bond (ethene), physical properties, chemical reactions: addition of hydrogen, water, hydrogen halides (Markovnikov’s addition and peroxide effect), mechanism of electrophilic addition.
  • Alkynes – Nomenclature, chemical reactions: acidic character of alkynes, addition reaction of – hydrogen, and water.
  • Aromatic Hydrocarbons: Introduction, IUPAC nomenclature, benzene: resonance, aromaticity
  • mechanism of electrophilic exchange. Nitration, sulphonation, Friedel Crafts alkylation and acylation, the influence of the functional group in monosubstituted benzene.
  • Carcinogenicity and toxicity.
  • Deleted Portion: free original device of halogenation, combustion.
  • Environmental Chemistry
  • Deleted Portion: Environmental pollution – air, and soil pollution, chemical reactions in the atmosphere, major atmospheric pollutants, and its reactions, effects of depletion of the ozone layer, greenhouse effect, and global warming- pollution due to industrial wastes, green chemistry as an alternative tool for decreasing pollution, control of environmental pollution.


Reduced SYLLABUS of Chemistry Class 11 CBSE for Practicals.

Practical exams for Chemistry Class 11 CBSE is for 40 marks. Students require to cover 

Volumetric Analysis, Salt Analysis, and complete Project Work to score for 36 marks. They also have to know VIVA for 4 marks

Program for efficient Exams for chemistry

  1. Basic Laboratory Techniques
    1. Bending a glass tube
    2. Cutting libation tube and glass rod
    3. Drawing out a libation jet
    4. Boring a cork
  2. Characterization and Cleaning of Chemical Substances
    1. Determination of melting point of an extensive compound.
    2. Determination of boiling point of an extensive compound.
    3. Crystallization of mixed examples of any one of the following: Alum, Copper Sulphate.


Quantitative Estimation

  • Using a mechanical balance.
  • Preparation of regular suspension of Oxalic acid.
  • Determination of frequency of a given solution of Sodium hydroxide by titrating it against a regulation solution of Oxalic acid.
  • Preparation of standard interpretation of Sodium carbonate.


  • Qualitative Analysis
    1. Detection of -Nitrogen, Chlorine in natural compounds.
    2. PROJECTS: Scientific studies including laboratory testing and collecting knowledge from other experts. A few suggested Projects


How to Study for Chemistry Class 11 CBSE Syllabus?

Once Students look at their CBSE chemistry syllabus for 2021 from here, they need to highlight the materials that need to be reached for the exams. We are appending few points that can help you to complete the chemistry classes in time and likewise help to score some good marks in the exams.  

  • Start making notes, and try to cover all the associated knowledge like elements properties, chemical formula, and usage
  • Try to remember all the artificial formulas. The easy way to remember is both through storytelling ideas, or making a chart and reading them daily. 
  • Keep daily targets for study and also allow some time to solve example papers. 


Take Away of the blog:

This blog serves you with the latest and patterned syllabus for Chemistry Class 11 CBSE subjects. Students should go for the undivided chemistry syllabus once and start making notes as recommended earlier. This will help students to complete the application on time and get some time for an absolute revision of the chapters that are seemingly in the exams. Students should also focus on books commanded by CBSE. According to CBSE directed works to cover Chemistry subjects are:


Students Also Asked:

  • What are separated topics from the chemistry syllabus from 2021?
  • Ans. The deleted topics are presented above. The maximum topics are deleted from Unit 5, Unit 10, and Unit 11.
  • From where can I download the Chemistry Class 11 CBSE?
  • Ans. VSI coaching institute in India is the best website for all the latest updates on the record, question papers, issues of class XI and XII of the CBSE board. 
  • How many chapters are removed in the Chemistry Class 11 CBSE syllabus?
  • Ans. Only the environmental chemistry chapter of unit 14 is completely removed from the curriculum. Only a few topics are removed from the rest of the ingredients. Students can check the removed topics from over There were 14 chapters in the Chemistry syllabus but for 2021 last part of Environmental Chemistry is just deleted.

Abhishek Rana is a versatile writer with a passion for technology and fitness. With a specialization in Tech Post, he excels in writing about mobile technology, online account recovery guides, and digital marketing strategies. When he's not immersed in the digital world, you'll find him hitting the gym, dedicated to maintaining a healthy lifestyle.