NCERT Class 11 Chemistry Notes - Download Chapter wise PDF Notes

Class 11 Chemistry Notes are the revision notes that discuss all the chapters covered in the NCERT textbook of Chemistry. The chapter-wise notes help to learn the syllabus in detail. These notes provide clear and detailed explanations of each chapter to understand core concepts and revise quickly before exams. The topics like atomic structure, chemical bonding, thermodynamics, equilibrium, etc., are highlighted here.

This Story also Contains

1. Chapter wise Chemistry Notes For Class 11
2. Chapter List (PART 1)
3. Chapter List (PART 2)
4. Deleted/Removed Chapter From Class 11 Chemistry
5. Chapter-wise Breakdown of CBSE Class 11 Chemistry Notes
6. Other CBSE NCERT Study Resources

The NCERT Class 11 Chemistry Book chapter-wise notes include a total of 9 chapters covering both part-1 and part 2 chemistry books. These notes are meticulously curated like a mini handbook of chemistry. The most recent CBSE curriculum is followed in the preparation of the NCERT notes to help students learn in an organized manner and enhance their capacity to answer both theoretical and numerical problems. They are particularly helpful for preparing for competitive exams like JEE and NEET as well as board exams. Students can also check out NCERT Solutions to practice the textbook questions.

Chapter wise Chemistry Notes For Class 11

NCERT Class 11 Chemistry notes include 9 chapters, as five chapters have been removed by NCERT from the CBSE syllabus. CBSE Class 11 is the base for advanced topics in the related subjects that will appear in Class 12. Thus, it becomes mandatory for Class 11 students to read and understand each of the topics in the easiest and most effective way with the help of these notes.

These Notes explain all the important concepts, equations, reactions, and frequently asked questions. Chemistry notes help to learn the syllabus in detail, which includes the physical, inorganic, and organic chapters of the NCERT Class 11 Chemistry Book.

Class 11 chemistry is divided into two parts with a total of 9 chapters; part 1 contains 6 chapters and part 2 contain 3 chapters.

Chapter List (PART 1)

Chapter List (PART 2)

Deleted/Removed Chapter From Class 11 Chemistry

The five chapters have been removed from the revised NCERT Class 11 Chemistry Textbook 2023–24. These chapters are listed below-

Chapter-wise Breakdown of CBSE Class 11 Chemistry Notes

Chapter 1-Some Basic Concepts of Chemistry

NCERT Class 11 Chemistry Notes Chapter 1 Some Basic Concepts of Chemistry will help you learn the properties of matter and the principles and laws related to it. The important topics covered are,

Laws of Chemical Combinations - Different elements combine to form compounds. The Laws of Chemical Combination have two basic laws. According to the Law of Conservation of Mass, the total mass of the components before and after a chemical reaction remains constant, which means nothing is lost or gained. Another is the Law of Constant Proportions, which states that the same elements are always present in a compound in the same fixed mass ratio. Water, for example, always contains a mass ratio of 1:8 for hydrogen to oxygen. These laws provide us a definite, predictable understanding of how elements react and mix.

Chapter 2-Structure of Atom

NCERT notes for chapter 2 contain all the concepts related discussed in the chapter. This chapter on Structure of Atom Class 11 notes also includes some FAQs to clarify some of the most frequent and important questions.The important topics covered are-

Chapter 3-Classification of Elements and Periodicity in Properties

Classification of elements and periodicity in properties is very important for Class 11 since it explains basics like chemical bonding and periodicity. The NCERT notes Class 11 Chemistry chapter 3 focuses on representing the concepts in the easiest way possible. The important topics covered are -

Mendeleev’s periodic table

Dmitri Ivanovich Mendeleev proposed the periodic table in 1869. He observed that the physical and chemical properties of elements were connected to their atomic masses periodically. Mendeleev's Law states that the chemical characteristics of elements are a periodic function of their atomic weights.

Limitations-

• The position of Isotopes could not be explained.
• The wrong order of atomic masses could not be justified. For example, while Argon has an atomic mass of 40, and K has a low atomic mass of 30, although K should be placed first due to his low atomic mass.
• Also the position of hydrogen was not explained.

Chapter 4-Chemical Bonding and Molecular Structure

The chapter Chemical bonding and molecular structure talks about the structure, the bond formation, and the properties of the molecules. The concepts discussed in the NCERT notes chapter 4 hold high importance as it form the basis for inorganic chemistry. The important topics covered are-

Chapter 5-Thermodynamics

The NCERT notes chapter 5 features the relationship between heat and other forms of energy. This is one of the most important chapters in Physical chemistry. The important topics covered are-

States of a system-
The quantities like temperature, pressure, the volume combine to form the composition of the system. But in order to deal with these quantities, we must have average conclusions of such measurements so we introduce a term called state functions or state variables. These quantities like pressure(p), volume(V), temperature(T), and amount(n) are referred as state variables or state functions.

Internal energy: It is defined as the combined energy or sum of energies such as mechanical, electrical or chemical etc. of the system. This is generally denoted by the letter ‘U’.

Chapter 6-Equilibrium

The NCERT notes of chapter 6 give a clear idea of the concepts mentioned in the chapter. Chemical equilibrium is the state in which neither the reactants nor the products can alter any further. When a system attains equilibrium, the forward and backward reaction rates remain constant. The important topics covered are-

Chapter 7-Redox Reactions

The NCERT notes for Redox Reactions give you a clear idea of all the important concepts. You can also practice questions from NCERT Exemplar as it includes all types of questions. The important topics covered are-

A redox reaction is a chemical reaction in which we can see the transfer of electrons occur in between two reactants, i.e, one is going to be reduced and the other is going to gain that electron.

Oxidation number can be defined as the bond formation of ionic bonds with other heteroatoms and at the same time, attaining the charge on that atom. For example,

The oxidation state of oxygen is -2 in most of the compounds. Although it acquires other oxidation number as well, depending on the elements it is connected with.

All alkali metal ions are always having a +1 oxidation state

Chapter 8-Organic Chemistry-Some Basic Principles and Techniques

The chapter is too crucial for building the basis of organic chemistry. The NCERT notes will be quite helpful since it will help you understand the fundamentals in the easiest way possible. The important topics covered are-

Chapter 9-Hydrocarbons

Hydrocarbons are building blocks of fuels, plastic, and many essential chemicals. The NCERT notes class 11 chapter 9 has presented all the concepts in simple yet informative way. The important topics covered are-

The compounds that are formed with the help of carbon and hydrogen are known as Hydrocarbons. The notes will help you distinguish a variety of hydrocarbons, e.g. saturated or unsaturated hydrocarbons, cyclic or acyclic, aromatic or non-aromatic etc.

Other CBSE NCERT Study Resources

The links provided in the table will help you get an idea about the syllabus and the respective books. Also, take a look at subject-wise notes and solutions for your exam preparations.

NCERT Exemplar Class 11 Solutions

Go through the links in the table below to get hands on exemplar solutions of the subjects-