Class 11th NCERT Solutions Chemistry: Download Chapter-wise Solutions PDFs & Weightage

Students can access the NCERT solutions of all the chapters of class 11 chemistry below and also download the PDFs from here:

Name of Chapter	PDF Link
Chapter 1 Some Basic Concepts of Chemistry NCERT Solutions	Download Free PDF
Chapter 2 Structure of Atom NCERT Solutions	Download Free PDF
Chapter 3 Classification of Elements and Periodicity in Properties NCERT Solutions	Download Free PDF
Chapter 4 Chemical Bonding and Molecular Structure NCERT Solutions	Download Free PDF
Chapter 5 Thermodynamics NCERT Solutions
Chapter 6 Equilibrium NCERT Solutions
Chapter 7 Redox Reactions NCERT Solutions
Chapter 8 Organic Chemistry – Some Basic Principles and Techniques NCERT Solutions
Chapter 9 Hydrocarbons NCERT Solutions

Deleted Topics From Class 11 Chemistry: A few chapters were deleted from the 11th Class Math NCERT Syllabus. Students can check the names of chapters below;

• States of Matter
• Hydrogen
• s-Block Elements
• p-Block Elements
• Environmental Chemistry

Students should have a basic understanding of the concepts covered in the 11th class Chemistry NCERT Textbook. Students can check below the key topics to be explained in every class 1th chapter below;

Class 11 Chemistry NCERT Chapter 1 Some Basic Concepts of Chemistry

Chapter 1 provides knowledge of fundamental concepts of chemistry, including measurement of the matter, early developmental concepts of chemistry, the concept of mole, atomic number, mass and other important laws and concepts. Chapter 1, Some Basic Concepts of Chemistry, lays the foundation for understanding chemical principles essential for upcoming chapters as well as higher studies. Students can check the key topics of chapter 1 below;

Some Basic Concepts of Chemistry: Topics Covered

Exercises	Topics Covered
1.1	Importance of Chemistry
1.2	Nature of Matter
1.3	Properties of Matter and their Measurement
1.4	Uncertainty in Measurement
1.5	Laws of Chemical Combinations
1.6	Dalton's Atomic Theory
1.7	Atomic and Molecular Masses
1.8	Mole Concept and Molar Masses
1.9	Percentage Composition
1.10	Stoichiometry and Stoichiometric Calculations

Class 11 Chemistry NCERT Chapter 2 Structure of Atom

Chapter 2 deals with one of the most important chemistry topics composition of matter, which includes information about the building blocks of matter, molecules, atoms, sub-particles, related theories and more. Atoms are the smallest and most important unit for the existence and formation of matter. This chapter is really important to understand the chemical reactions and formation of new compounds and more interesting things. Students can check the important topics below;

Structure of Atom: Topics Covered

Exercises	Topics Covered
2.1	Discovery of Sub-Atomic Particles
2.2	Atomic Models
2.3	Developments Leading to the Bohr's Model of Atom
2.4	Bohr's Model for Hydrogen Atom
2.5	Towards Quantum Mechanical Model of the Atom
2.6	Quantum Mechanical Model of Atom

Class 11 Chemistry NCERT Chapter 3 Classification of Elements and Periodicity in Properties

Chapter 3 deals with the arrangement of the known elements in an organized manner,  introducing one of the most important things, the periodic table. Students will learn about the periodic table, elements and their position in the periodic table, concepts such as atomic radii, mass, Ionization enthalpy, electron gain enthalpy, and many more small yet very important concepts. This chapter also helps in building a strong foundation to ace the advanced concepts of chemistry. Students can check the important topics below;

Classification of Elements and Periodicity in Properties: Topics Covered

Exercises	Topics Covered
3.1	Why do we need to classify elements
3.2	Genesis of Periodic Classification
3.3	Modern Periodic Law and the Present Form of the Periodic Table
3.4	Nomenclature of Elements with Atomic Numbers > 100
3.5	Electronic Configurations of Elements and the Periodic Table
3.6	Electronic Configurations and Types of Elements: S-, P-, D-, F- Blocks
3.7	Periodic Trends in Properties of Elements

Class 11 Chemistry NCERT Chapter 4 Chemical Bonding and Molecular Structure

Chapter 4 Chemical bonding provides the fundamental knowledge to understand the product formation in chemical reactions and also how specific products are formed via a specific chemical reaction. Chemical bonding is responsible for holding atoms together in molecules and compounds. This chapter deals with different types of bonds and how they influence molecular properties. Students can check the chapter 4 key topics below:

Chemical Bonding and Molecular Structure: Topics Covered

Exercises	Topics Covered
4.1	Kossel-Lewis Approach to Chemical Bonding
4.2	Ionic or Electrovalent Bond
4.3	Bond Parameters
4.4	The Valence Shell Electron Pair Repulsion (VSEPR) Theory
4.5	Valence Bond Theory
4.6	Hybridisation
4.7	Molecular Orbital Theory
4.8	Bonding in Some Homonuclear Diatomic Molecules
4.9	Hydrogen Bonding

Class 11 Chemistry NCERT Chapter 5 Thermodynamics

Chapter 5 is mainly related to the physical changes of the surrounding system and produces, which are used in the chemical reaction. Thermodynamics mostly deals with the energy exchange during the chemical process: isothermal, endothermic, and exothermic. Students will get to learn about various topics related to thermodynamic terminology, such as enthalpy, entropy, latent heat, specific heat, and more. Students can check the information about the topics discussed in the chapter below.

Thermodynamics: Topics Covered

Exercises	Topics Covered
5.1	Thermodynamic Terms
5.2	Applications
5.3	Measurement of ∆U and ∆H: Calorimetry
5.4	Enthalpy Change, ∆rH of a Reaction - Reaction Enthalpy
5.5	Enthalpies for Different Types of Reactions
5.6	Spontaneity
5.7	Gibbs Energy Change and Equilibrium

Class 11 Chemistry NCERT Chapter 6 Equilibrium

Chapter 6 Chemical Equilibrium is an important chapter to learn more about the reaction mechanism of the Chemical reactions. Students will also learn the concepts related to the equilibrium state of a chemical reaction. Equilibrium is a state where the rate of forward and backward reactions become equal. Students can check the important topic of discussion in this chapter.

Equilibrium: Topics Covered

Exercises	Topics Covered
6.1	Equilibrium in Physical Processes
6.2	Equilibrium in Chemical Processes - Dynamic Equilibrium
6.3	Law of Chemical Equilibrium and Equilibrium Constant
6.4	Homogeneous Equilibria
6.5	Heterogeneous Equilibria
6.6	Applications of Equilibrium Constants
6.7	Relationship Between Equilibrium Constant K, Reaction Quotient Q and Gibbs Energy G
6.8	Factors Affecting Equilibria
6.9	Ionic Equilibrium in Solution
6.10	Acids, Bases and Salts
6.11	Ionization of Acids and Bases
6.12	Buffer Solutions
6.13	Solubility Equilibria of Sparingly Soluble Salts

Class 11 Chemistry NCERT Chapter 7 Redox Reaction

Chapter 7 Redox reactions deal with types of chemical reactions that are abundant and easy to observe, chemical reactions where oxidation (loss of electrons) and reduction (gain of electrons) happen together.  Students can observe redox reactions on many occasions in everyday life, such as rusting, combustion, and metabolism. Students can check the important topics of discussion for Redox Reactions below:

Redox Reaction: Topics Covered

Exercises	Topics Covered
7.1	Classical Idea of Redox Reactions - Oxidation and Reduction Reactions
7.2	Redox Reactions in Terms of Electron Transfer Reactions
7.3	Oxidation Number
7.4	Redox Reactions and Electrode Processes

Class 11 Chemistry NCERT Chapter 8 Organic Chemistry- Some Basic Principles & Techniques

Chapter 8 Organic Chemistry deals with carbon, its chemical properties, and carbon compounds. Carbon has a unique property called catenation, which allows carbon to form chains with other carbon atoms and form covalent bonds with atoms of other elements like hydrogen, oxygen, nitrogen, and halogens. All Carbon compounds are studied under a separate branch of chemistry called organic chemistry. Students can check the important topics of the chapter below:

Organic Chemistry- Some Basic Principles & Techniques: Topics Covered

Exercises	Topics Covered
8.1	General Introduction
8.2	Tetravalence of Carbon: Shapes of Organic Compounds
8.3	Structural Representations of Organic Compounds
8.4	Classification of Organic Compounds
8.5	Nomenclature of Organic Compounds
8.6	Isomerism
8.7	Fundamental Concepts in Organic Reaction Mechanism
8.8	Methods of Purification of Organic Compounds
8.9	Qualitative Analysis of Organic Compounds
8.10	Quantitative Analysis

Class 11 Chemistry NCERT Chapter 9 Hydrocarbons

Chapter 9 Hydrocarbons focuses mainly on the organic compounds made up of carbon and hydrogen. This chapter is also very important from a competitive exam perspective.  Hydrocarbons are widely used as they are the basic components of fuels like petrol, diesel, and natural gas. there are two categories of hydrocarbons: saturated and unsaturated hydrocarbons. Students can check the important topics discussed in the chapter below:

Hydrocarbons: Topics Covered

Exercises	Topics Covered
9.1	Classification
9.2	Alkanes
9.3	Alkenes
9.4	Alkynes
9.5	Aromatic Hydrocarbon
9.6	Carcinogenicity and Toxicity

Class 11 Chemistry plays an important role in the JEE Mains exam, Students can check and utilise the weightage of the class 11 chemistry chapters below;

Name of the Chapter	JEE Mains Weightage (%)
Some Basic Concepts of Chemistry	3.3%
Structure of Atom	6.6%
Classification of Elements & Periodicity in Properties	3.3%
Chemical Bonding & Molecular Structure	6.6%
States of Matter: Gases and Liquids	3.3%
Thermodynamics	6.6%
Equilibrium	6.6%
Redox Reactions	3.3%
Hydrogen	3.3%
s-Block Element (Alkali and Alkaline earth metals)	3.3%
Some p-Block Elements	3.3%
Organic Chemistry - Some Basic Principles & Techniques	6.6%
Hydrocarbons	6.6%
Environmental Chemistry	3.3%

NEET aspirants understand the weightage of class 11 chemistry in the actual exam. Aspirants can check the chapter-wise Class 11 Chemistry chapter-wise weightage for NEET Exam below;

Chapter	Approximatre Weightage (%)
Some Basic Concepts of Chemistry	2-3%
Structure of Atom	3-4%
Classification of Elements and Periodicity in Properties	3-4%
Chemical Bonding and Molecular Structure	5-6%
States of Matter: Gases and Liquids	2-3%
Thermodynamics	8-10%
Equilibrium	6-7%
Redox Reactions	3-4%
Hydrogen	3-4%
s-Block Element (Alkali and Alkaline earth metals)	2-3%
Some p-Block Elements	2-3%
Organic Chemistry - Some Basic Principles and Techniques	4-5%
Hydrocarbons	3-4%
Environmental Chemistry	2-3%

Students can check the chapter-wise weightage for the class 11 chemistry chapters below;

Chapters Name	Marks
Some Basic Concepts of Chemistry	7
Structure of Atom	9
Classification of Elements and Periodicity in Properties	6
Chemical Bonding and Molecular Structure	7
Chemical Thermodynamics	9
Equilibrium	7
Redox Reactions	4
Organic Chemistry: Some basic Principles and Techniques	11
Hydrocarbons	10
Total	70

Practical Exam: Weightage

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