In CBSE Class 11, Chemistry is a combination of theoretical and practical knowledge. In Chemistry , you can really score 100% if you study well and understand the concept.At IITianAcademy, we provide excellent notes prepared by Ex-IITIan along with Sample Papers and past years question papers. You will be provided with O P Tondon,R C Mukherjee question and Answers. IITianAcademy provide real time help for any doubt clarification and topic explanations. We suggest you to follow below mantra to score good marks in Class 11 Chemistry

Following are the tips to prepare for Chemistry :-

  • First make a note of formulas & derivations separately. Get a reference from IITianAcademy Notes
  • Learn it by heart, we will help for any doubt detail explanation
  • Learn all the principles and theories.
  • Practice diagrams and do it neatly on your answer sheet and label it properly.
  • Take help of different guides or references for practising different types of numericals.
  • Always answer your questions as per marks. If it contains less marks then try to answer in brief and if it contains more marks then try to make your answer lengthy, and also make diagrams if necessary. It doesn’t matter whether it is mentioned or not to make diagrams. Do it as per marks.
  • Solve previous years question papers so that you can understand the patterns of question paper.
  • Always practice all the definitions by writing it.

Here in this Section, we have mentioned the Class 11 Chemistry Exam Pattern. Students can check the Class 11 Chemistry Exam Pattern for the academic year 2020-21.

Unit No. Title No. of Periods Marks
Unit I Some Basic Concepts of Chemistry 12 11
Unit II Structure of Atom 14
Unit III Classification of Elements and Periodicity in Properties 08 04
Unit IV Chemical Bonding and Molecular Structure 14 21
Unit V States of Matter: Gases and Liquids 12
Unit VI Chemical Thermodynamics 16
Unit VII Equilibrium 14
Unit VIII Redox Reactions 06 16
Unit IX Hydrogen 08
Unit X s -Block Elements 10
Unit XI Some p -Block Elements 14
Unit XII Organic Chemistry: Some Basic Principles and Techniques 14 18
Unit XIII Hydrocarbons 12
Unit XIV Environmental Chemistry 06
Total 160 70


Below we have mentioned the Class 11 Chemistry Practical Syllabus like which topics to be covered in the practical. students are advised to check the brief review of Chemistry syllabus Practicals.

Evaluation Scheme for Examination Marks
Volumetric Analysis 08
Salt Analysis 08
Content-Based Experiment 06
Project Work 04
Class record and viva 04
Total 30

CBSE Class 11 Chemistry, Notes ,Test Papers, Sample Papers, NCERT Solutions and many more..

  • CBSE Class 11 Chemistry

    CLASS XI:UNIT I: Some Basic Concepts of Chemistry

    • UNIT I: Some Basic Concepts of Chemistry
    • Laws of chemical combination, Dalton’s atomic theory: concept of elements, atoms and molecules.
    • Atomic and molecular masses. Mole concept and molar mass; percentage composition and empirical and molecular formula; chemical reactions, stoichiometry and calculations based on stoichiometry.

    CLASS XI UNIT II: Structure of Atom

    • Atomic number, isotopes and isobars. Concept of shells and subshells, dual nature of matter and light, de Broglie’s relationship, Heisenberg uncertainty principle, concept of orbital, quantum numbers, shapes of s,p and d orbitals, rules for filling electrons in orbitals- Aufbau principle, Pauli exclusion principles and Hund’s rule, electronic configuration of atoms, stability of half filled and completely filled orbitals.

    CLASS XI:UNIT III: Classification of Elements and Periodicity in Properties

    • Modern periodic law and long form of periodic table, periodic trends in properties of elements- atomic radii, ionic radii, ionization enthalpy, electron gain enthalpy, electronegativity, valence.

    CLASS XI:UNIT IV: Chemical Bonding and Molecular Structure

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

    CLASS XI: UNIT V: States of Matter: Gases and Liquids

    • Three states of matter, intermolecular interactions, types of bonding, melting and boiling points, role of gas laws in elucidating the concept of the molecule, Boyle’s law, Charles law, Gay Lussac’s law, Avogadro’s law, ideal behaviour, empirical derivation of gas equation, Avogadro’s number, ideal gas equation
    • Deviation from ideal behaviour, liquefaction of gases, critical temperature, kinetic energy and molecular speeds (elementary idea)Liquid State- vapour pressure, viscosity and surface tension (qualitative idea only, no mathematical derivations)

    CLASS XI: UNIT VI : Thermodynamics

    • First law of thermodynamics-internal energy and enthalpy, heat capacity and specific heat, measurement of ∆U and ∆H, Hess’s law of constant heat summation, enthalpy of : bond dissociation, combustion, formation, atomization, sublimation, phase transition, ionization, solution and dilution.
    • Introduction of entropy as state function, Second law of thermodynamics, Gibbs energy change for spontaneous and non-spontaneous process, criteria for equilibrium and spontaneity.
    • Third law of thermodynamics- Brief introduction.

    CLASS XI:UNIT VII: Equilibrium

    • Equilibrium in physical and chemical processes, dynamic nature of equilibrium, law of chemical equilibrium, 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, acid strength, concept of PH., Hydrolysis of salts (elementary idea), buffer solutions, Henderson equation, solubility product, common ion effect (with illustrative examples).

    CLASS XI: UNIT VIII: Redox Reactions

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

    CLASS XI:UNIT IX: Hydrogen

    • Position of hydrogen in periodic table, occurrence, isotopes, preparation, properties and uses of hydrogen, hydrides-ionic covalent and interstitial;
    • physical and chemical properties of water, heavy water, hydrogen peroxide -preparation, reactions and structure and use; hydrogen as a fuel.

    CLASS XI:UNIT X: s-Block Elements (Alkali and Alkaline earth metals)

    • Group I and group 2 elements:
    • General introduction, electronic configuration, occurrence, anomalous properties of the first element of each group, diagonal relationship, trends in the variation of properties (such as ionization enthalpy, atomic and ionic radii), trends in chemical reactivity with oxygen, water, hydrogen and halogens; uses.
    • Preparation and Properties of Some important Compounds:
    • Sodium carbonate, sodium chloride, sodium hydroxide and sodium hydrogencarbonate, biological importance of sodium and potassium.
    • Industrial use of lime and limestone, biological importance of Mg and Ca.

    CLASS XI: UNIT XI: Some p-Block Elements

    • General Introduction to p-Block Elements.
    • Group 13 elements: General introduction, electronic configuration, occurrence, variation of properties, oxidation states, trends in chemical reactivity, anomalous properties of first element of the group; Boron, some important compounds: borax, boric acids, boron hydrides. Aluminium: uses, reactions with acids and alkalies.
    • General 14 elements: General introduction, electronic configuration, occurrence, variation of properties, oxidation states, trends in chemical reactivity, anomalous behaviour of first element. Carbon, allotropic forms, physical and chemical properties: uses of some important compounds: oxides.
    • Important compounds of silicon and a few uses: silicon tetrachloride, silicones, silicates and zeolites, their uses.

    CLASS XI:UNIT XII: Organic Chemistry- Some Basic Principles and Techniques

    • General introduction, methods of purification qualitative and quantitative analysis, classification and IUPAC nomenclature of organic compounds.
    • Electronic displacements in a covalent bond: inductive effect, electromeric effect, resonance and hyper conjugation.
    • Homolytic and heterolytic fission of a covalent bond: free radials, carbocations, carbanions; electrophiles and nucleophiles, types of organic reactions.

    CLASS XI: UNIT XIII: Hydrocarbons

    • Alkanes- Nomenclature, isomerism, conformations (ethane only), physical properties, chemical reactions including free radical mechanism of halogenation, combustion and pyrolysis.
    • Alkanes-Nomenclature, structure of double bond (ethene), geometrical isomerism, physical properties, methods of preparation: chemical reactions: addition of hydrogen, halogen, water, hydrogen halides (Markovnikov’s addition and peroxide effect), ozonolysis, oxidation, mechanism of electrophilic addition.
    • Alkynes-Nomenclature, structure of triple bond (ethyne), physical properties, methods of preparation, chemical reactions: acidic character of alkynes, addition reaction of- hydrogen, halogens, hydrogen halides and water.
    • Aromatic hydrocarbons- Introduction, IUPAC nomenclature; Benzene; resonance, aromaticity; chemical properties: mechanism of electrophilic substitution- Nitration sulphonation, halogenation, Friedel Craft’s alkylation and acylation; directive influence of functional group in mono-substituted benzene; carcinogenicity and toxicity.

    CLASS XI: UNIT XIV: Environmental Chemistry

    • Environmental pollution: Air, water and soil pollution, chemical reactions in atmosphere, smogs, major atmospheric pollutants;acid rain ozone and its reactions, effects of depletion of ozone layer, greenhouse effect and global warming-pollution due to industrial wastes; green chemistry as an alternative tool for reducing pollution, strategy for control of environmental pollution.

    Best Reference Books for CBSE Class 11 Chemistry besides NCERT Textbooks

    The syllabus of Class 11 Chemistry subject is huge and the following books are helpful for the preparation of CBSE Class 11 Chemistry exams. These books are also important for competitive exams like JEE Main & NEET

    NCERT Exemplar Class 11 Chemistry – All Chapters
    Pradeep’s New Course Chemistry: Class 11 (Volume 1 & 2)
    NCERT Exemplar Solutions for Class 11 Chemistry – All Chapters
    NCERT Solutions for Class 11th Chemistry: All Chapters

    CBSE Class 11 Chemistry, Notes ,Test Papers, Sample Papers, NCERT Solutions

    NCERT Solutions for Class 11 Science 

    Get 100 percent accurate NCERT Solutions for Class 11 Science Chapters explained by expert Science teachers. We provide step by step solutions for the questions given in Class 11 Science textbook as per CBSE Board guidelines from the latest NCERT book for Class 11 Science.

    CBSE Class 11 Chemistry Notes

    Get Notes prepared by Ex-IITIan for CBSE Class 11 Chemistry

    Concept Maps and Important Questions Class 11 Chemistry 

    These concept maps and important questions will help you to revise the concepts quickly and get good marks.Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers of Class 11 Science Chapter  are provided here for . I will help you online for any doubt / clarification.

    CBSE Class 11 Chemistry Assignments

    Chapter wise assignments are being given by teachers to students to make them understand the chapter concepts. Its extremely critical for all CBSE students to practice all assignments which will help them in gaining better marks in examinations. All assignments available for free download on the website are developed by the best teachers having many years of teaching experience in CBSE schools all over the country. Students, teachers and parents are advised to contact me online incase of any doubt / clarification.

    Past Many Years Question Chemistry Class 11 Solutions

    Past Many Years Question Papers Solutions for Class 11 Chemistry are provided here with simple step-by-step explanations. These solutions for are extremely popular among Class 11 students for Chemistry . Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the Past Many Years Question Papers Book of Class 11 Chemistry are provided here for . I will help you online for any doubt / clarification.


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