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Chemistry Revision Notes for Class 11

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Last updated date: 27th Mar 2024
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MVSAT 2024

Chemistry Revision Notes for Class 11 - Free PDF Download

Chemistry involves a lot of conceptual clarity to answer all kinds of questions in the CBSE exams. That is why it becomes essential for Class 11 students to get Chemistry Class 11 Notes prepared by experienced teachers. The subject matter experts at Vedantu have designed these Notes of Chemistry Class 11 by putting in hours of research on the latest CBSE curriculum. These notes are extremely beneficial for students from an exam point of view. Students can also download the revision notes so that preparing for exams becomes much easier.

Detailed Overview of Class 11 Chemistry Revision Notes

Class:

11

Subject:

Chemistry

Number of Chapters:

14

Content-Type:

Text, Videos, Images and PDF Format

Academic Year:

2023-24

Medium:

English

Available Materials:

Chapter Wise

Other Materials

  • Important Questions

  • NCERT Solutions


1000+ Basic Subjective Questions can be added advantage to your Class 11 Chemistry Notes

Vedantu provides a comprehensive set of basic subjective questions for Class 11 Chemistry, with 1 mark and 2 marks subjective questions and answers. These questions are carefully curated by subject experts to ensure that they are relevant to the latest syllabus and exam patterns. They also cover a wide range of topics, so students can be sure to find questions that address their weak areas.


In addition to the questions, Vedantu also provides detailed answers, so students can learn how to answer them correctly. This helps students to understand the concepts behind the questions and to improve their problem-solving skills.


The basic subjective questions (1 mark & 2 mark) from Vedantu are a valuable resource for students who are preparing for their Class 11 Chemistry exams. They can help students to identify their weak areas, to improve their problem-solving skills, and to boost their confidence.


Subjective Questions benefits For Class 11 Chemistry:

  • Relevant to the latest syllabus and exam patterns: Vedantu's basic subjective questions and Class 11 Chemistry notes are designed to align with the latest syllabus and exam patterns, ensuring that students focus on the most relevant topics and formats that they are likely to encounter in their Class 11 Chemistry exams.

  • Coverage of topics: Class 11 Chemistry notes cover a wide range of topics, allowing students to thoroughly practice and understand various concepts within the subject. This basic subjective questions coverage helps in developing a strong foundation in the subject matter.

  • Detailed and easy to understand Answers: Vedantu provides detailed solutions, making it easier for students to grasp complex concepts and learn from their mistakes. 

  • Identification of Weak Areas: By referring to Vedantu's subjective questions and Class 11 notes, students can identify their weak areas and specific topics that require further attention and improvement.

  • Improvement in Problem-Solving Skills: Regularly practicing 1 mark & 2 Mark questions along with Revision notes helps students to develop critical thinking and analytical skills. .

  • Boosting Confidence: Subjective questions and Class 11 Chemistry notes, helps to grow the confidence in the subject and it positively impacts their academic performance in exams.


If you are a student who is preparing for your Class 11 Chemistry exams, I highly recommend using Vedantu's 1 mark and 2 mark subjective questions. They are a valuable resource that can help you to succeed in your exams.


Download CBSE Class 11 Chemistry Revision Notes 2023-24 PDF

Also, check CBSE Class 11 Chemistry revision notes for All chapters:



You can also check for How do I study chemistry for class 11 using vedantu notes

Competitive Exams after 12th Science

Revision Notes Chemistry Class 11 - Short Key Notes

Class 11th Chemistry is a stepping stone for students to hone their knowledge in Chemistry for pursuing higher courses or appearing in competitive exams. With all the 11th Chemistry Notes available in PDF format at the official website of Vedantu, students can get maximum benefit by saving these on their devices. Once you have the PDF available on your device, you can revise all the essential points of this subject on the go, without connecting to the internet.


CBSE Class 11 Chemistry Weightage 2023-24

S.No

Unit

Marks

1

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



Chemistry Class 11 Chapter 1 - Some Basic Concepts of Chemistry

Our Revision Notes of Chemistry Class 11 touches upon Chemistry's fundamentals by defining Chemistry and discussing the different sections of Chemistry that students learn as part of their curriculum. Here are the key points discussed in this chapter:

  • Definition of Chemistry.

  • Types of Chemistry - Organic, Physical, and Inorganic.

  • Definition of matter and types of matter (solid, liquid, gas).

  • Classification of matter at the macroscopic level.

  • Properties of matter - Physical, Chemical.


Chemistry Class 11 Chapter 2 - Structure of Atom

The crucial Class 11 Chemistry Revision Notes will prepare students on atoms and the discovery of subatomic particles. You can learn the following in this chapter:

  • Structure of atoms - the discovery of fundamental particles (electron, proton, and neutron).

  • Atomic building blocks

  • Thomson model

  • Bohr’s model

  • Rutherford’s Alpha Scattering experiment

  • Electromagnetic radiations


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

Our Chemistry Revision Notes Class 11 Chapter 3 explains why the classification of elements was needed and how periodic classification came into existence. You will gain knowledge of the following topics in this chapter:

  • Historical development of Periodic table - Newland’s law of octaves, Lothar Meyer’s Curve, Mendeleev’s periodic law, and Modern periodic law.

  • Basics of block, period, and group.

  • Properties of an element - covalent radius, atomic radius, metallic radius.

  • The modern periodic law.

  • Electronegativity.

  • Periodic trends in chemical properties.


Chemistry Class 11 Chapter 4 - Chemical Bonding and Molecular Structure

Our quick Revision Notes for Chemistry Class 11 Chapter 4 explains why atoms cannot exist freely in nature and the concept of chemical bonding. The key take-aways of this chapter are:

  • Chemical bond - why do atoms combine and modes of their chemical composition.

  • Ionic bond with examples.

  • Factors that govern ionic bonds - Ionization energy, Electron affinity, Lattice energy.

  • Lewis symbols.

  • Electrovalency

  • Covalent bonds.

  • The formal charge of an atom.

  • Valence shell electron and pair repulsion theory.

  • Hybridization.

  • Hydrogen bonding.

  • Valence bond theory.


Chemistry Class 11 Chapter 5 - States of Matter

The crucial Chemistry Class 11 Revision Notes of Chapter 5 will acquaint students with the basics of matter and its various states. In this chapter, you would get in-depth knowledge of:

  • Definition of matter.

  • Intermolecular forces.

  • Intermolecular forces vs thermal energy.

  • The Ideal gas and Ideal gas law - Charle’s law, Gay Lussac’s law, Avogadro’s law.

  • Dalton’s law of partial pressure.

  • Graham’s law of diffusion.

  • Kinetic theory of gases.

  • Molecular distribution of speeds - Maxwell Boltzman’s distribution.

  • Real gases.


Chemistry Class 11 Chapter 6 - Thermodynamics

In our Plus One Chemistry Revision Notes of thermodynamics, you would learn what is thermodynamics and its relation with Thermochemistry. The following salient topics are part of this revision notes:

  • Different terminologies of Thermodynamics - System, surrounding, etc.

  • State of a system and its properties.

  • Thermodynamic Equilibrium - mechanical, thermal, and chemical.

  • Internal energy.

  • The first law of thermodynamics.

  • Reversibility.

  • Entropy concept.

  • Need for the second law of thermodynamics.

  • Types of processes - Spontaneous and Non-spontaneous.

  • Gibbs free energy.


Chemistry Class 11 Chapter 7 - Equilibrium

These crucial notes of the equilibrium chapter explain the state of reactions in chemical and physical processes. You would get to know the following in this chapter:

  • Equilibrium in Chemical Processes - Reversible and Irreversible reactions.

  • Equilibrium Constant.

  • Rate of a Reaction.

  • Homogeneous Equilibria. 

  • Heterogeneous Equilibria.

  • Degree of Association, α

  • Electrolytes - Acid, Bases, and Salts.

  • Dissociation of weak acids and bases.

  • Salt Hydrolysis.


Chemistry Class 11 Chapter 8 - Redox Reactions

In our revision notes on Redox Reactions, you would learn about classical redox reactions in terms of oxidation and reduction. Here are a few essential topics discussed in this chapter:

  • Oxidation and reduction with many examples.

  • Oxidation number and its rules.

  • Calculation of oxidation number of elements in different compounds.

  • The paradox of fractional oxidation number.

  • Oxidizing and Reducing Agents.

  • Balancing Redox reactions.


Chemistry Class 11 Chapter 9 - Hydrogen

The crucial notes of the Hydrogen chapter discuss this element in detail like its isotopes, position in the periodic table, etc. You can go through the key points of this chapter outlined below:

  • Position of Hydrogen in the Periodic Table and explanation on why it is the first element.

  • Discovery and occurrence.

  • Preparation of Dihydrogen - Lane’s Process, Bosch’s Process.

  • Different forms of Hydrogen - atomic, Nascent, Ortho, Para, Hydrides.

  • Isotopes of Hydrogen.

  • Water and heavy water.

  • Hydrogen Peroxide.


Chemistry Class 11 Chapter 10 - The s-Block Elements

The crucial notes of Chapter 10 explain the s-block elements concerning alkali and alkaline metals. Along with the various characteristics of the s-Block elements, you would also learn the following in this chapter:

  • Alkali metals - electronic configuration, physical, and chemical properties.

  • Carbonates and Bicarbonates.

  • Halides.

  • Anomalous behaviour of Lithium.

  • Extraction of Sodium - Castner’s process, Down’s process.

  • Alkaline Earth Metals - Physical and chemical properties.

  • Hydroxides.

  • Carbonates.


Chemistry Class 11 Chapter 11 - The p-Block Elements

Our revision notes on p-Block elements cover in detail the following main topics:

  • Explanation of the group number of p-Block elements.

  • Trends in properties of p-Block elements.

  • The Boron family.

  • Compounds of Boron.

  • Aluminium - extraction (Hall-Heroult Process), properties, compounds.


Chemistry Class 11 Chapter 12 - Organic Chemistry

The crucial notes of Chapter 12 Chemistry give an in-depth knowledge of how organic Chemistry originated and its definition. The main learnings of this chapter are:

  • The modern definition of organic Chemistry i.e. it is the study of carbon compounds.

  • Sigma and Pi-Bonds.

  • Degrees of Carbon and Hybridization.

  • Breaking of Bonds - homolytic cleavage, Heterolytic cleavage.

  • Inductive effect.

  • Electron donating and withdrawing groups with examples.

  • Mesomeric effect.

  • Hyperconjugation.

  • Carbon-free radicals.


Chemistry Class 11 Chapter 13 - Hydrocarbons

In our revision notes of Chapter 13, you would understand what alkanes are, how they are prepared, and miscellaneous other features of hydrocarbons. To get a peek into the details of this chapter, you could go through the list below:

  • Alkanes - methods of preparation, physical, and chemical properties.

  • Alkenes

  • Alkynes

  • Aromatic hydrocarbons

  • Toxicity and carcinogenicity


Chemistry Class 11 Chapter 14 - Environmental Chemistry

The crucial notes of Chapter 14 cover the important topic of environmental Chemistry. You will understand the fate of different species in the environment by going through reactions, effects, origin, etc. The key points discussed here are:

  • Environmental pollution and its effects.

  • Definition of terms like a pollutant, contaminant, receptor, sink, etc.

  • BOD - Biological oxygen demand.

  • Environment segments - atmosphere, hydrosphere, lithosphere, biosphere.

  • Air Pollution - carbon monoxide, nitrogen oxides, freons, etc.

  • Carbon pollutants.


Significance of Revision Notes CBSE Class 11 Chemistry

Chemistry is one of the most important subjects for Class 11 students. They need to develop a conceptual foundation for the chapters included in the Chemistry syllabus. In Class 11, students are introduced to a lot of new concepts in Chemistry. Some of the most important topics include the basic concepts, Atomic Structure, Chemical Bonding, Molecular Structure, Classification of Elements, Periodic Properties, Chemical Equilibrium, Redox Reactions, Hydrocarbons, etc. Students can take help from the 11th Chemistry Notes in order to complete their chapters and gain more knowledge about the concepts. These notes have been crafted by the learned experts at Vedantu.

 

Students will be able to gain a lot of information about the concepts of Organic and Inorganic Chemistry from these chapters. The first few chapters deal with the principles and processes of Inorganic and Physical Chemistry, while the latter chapters contain details about Organic Chemistry. Students will gain a lot of insights into the chapters from the revision notes. It is important for the students of Class 11 to download Chemistry Notes for Class 11 PDF from Vedantu in order to gain proper conceptual knowledge about the chapters.

 

The revision notes contain explanations for the chapters, examples for better understanding, and solved questions from the textbooks. All the chemical equations, processes, and laws have been explained in great detail to ensure that students can understand the concepts easily. Following the notes will enable them to tackle several calculative and numerical problems on their own as well. They can gain a lot of benefits from downloading the notes and preparing from them.


Benefits of Class 11 Chemistry Notes PDF Download

  • One of the main benefits of Class 11 Chemistry Notes is that the topics and concepts have been explained very simply by the Vedantu experts. They explained the concepts using simple language for the students to understand.

  • Referencing the solutions will enable the students to learn about a lot of processes, functions, laws, and principles in Chemistry. They will also know how to solve several numerical problems with the help of steps that have been explained.

  • Another advantage of the revision notes for Class 11 Chemistry is that students can easily clarify any of their doubts by following the notes. They can use the notes to figure out the errors in their preparation and improve their own answering skills in the best way.

  • If you miss a class or two in school due to ill-health, you don’t have to worry about missing out on the details of the Chemistry chapters. All the topics have been explained in the notes and that too according to the CBSE standards.

  • The notes have been arranged in a systematic fashion to give easy access to students. Say you want to download Class 11 Chemistry Chapter 1 Notes, you will find links to the specific chapter right here.


Find Quick Revision Notes for Chemistry Class 11 Right Here!

If you are looking to improve your concepts on Chemistry and need an additional boost of knowledge, download Vedantus’s revision notes. Clear out your concepts regarding different topics from the chapters and boost your preparation for the final exams.


CBSE Class 11 Chemistry Study Materials

FAQs on Chemistry Revision Notes for Class 11

1. What is meant by intermolecular forces?

Ans: The matter is composed of atoms and molecules, and the arrangement of these building blocks determine the shape and structure of matter. The physical properties of matter are dependent on the force of interaction between its molecules. This force is termed as an intermolecular force. The intermolecular force is highest in solids and least in gases.

2. What is the Greenhouse Effect?

Ans: The infrared radiation coming to the earth is absorbed by carbon dioxide and water vapour in the atmosphere. A part of these rays is reflected on the earth’s surface as well, causing the earth’s surface to heat up. This heating up of the earth’s surface is called global warming or the Greenhouse Effect. This phenomenon came into existence mainly due to deforestation as it increased the level of CO2 in the atmosphere. Some of the significant adverse effects of global warming are:

  • If there is a 50% increase in the air's CO2 level, the earth’s temperature goes up by 3 degrees celsius.

  • With a 1 degree increase in the earth’s temperature, the ice caps of the polar region melt. This increases the sea-level by 90 cms.

  • The rate of evaporation of water from various sources like ponds, rivers and sea increases with temperature and causes calamities like hurricanes, cyclones, etc.

3. What are the chapters covered in Class 11 Chemistry Notes?

Ans: The following chapters are covered in Class 11 Chemistry Notes:

  • 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

  • Chapter 6 - Thermodynamics

  • Chapter 7 - Equilibrium

  • Chapter 8 - Redox Reactions

  • Chapter 9 - Hydrogen

  • Chapter 10 - The s-Block Elements

  • Chapter 11 - The p-Block Elements

  • Chapter 12 - Organic Chemistry - Some Basic Principles and Technique

  • Chapter 13 - Hydrocarbons

  • Chapter 14 - Environmental Chemistry

4. How are Vedantu’s Class 11 Chemistry notes beneficial?

Ans: Class 11 Chemistry has an extensive syllabus covering two books. Vedantu's Revision Notes for Class 11 Chemistry aids the students by providing all the important information in clear and concise points. These notes serve as a great revision tool before the exams when you do not have much time to go through every line in the textbook. If you make personalized notes you can tally them with our notes made by expert professionals for an added perspective.

5. Where can I find the notes for Class 11 Chemistry?

Ans: If you are looking for notes for Class 11 Chemistry that can help improve your understanding of the various concepts that are part of the syllabus, Vedantu’s e-platform is the right place for you. Students can access and download chapter-wise CBSE Notes for Class 11 Chemistry from the Vedantu website or app. These notes can be downloaded free of cost. These notes have been created by subject experts to provide students with the best resource available for better and stronger preparation before their Class 11 Chemistry exam. These solutions are based on the latest CBSE guidelines and exam patterns, so they are 100% reliable and accurate.

6. How can I top in Class 11 Chemistry?

Ans: Chemistry in Class 11 introduces students to various different and new concepts that may require some extra preparation for the students to be able to score well in their exams. Here are some tips that you can follow to the top in your Class 11 Chemistry exam:

  • Be thorough with each chapter and refer to CBSE Class 11 Chemistry Notes for a better understanding.

  • Solve NCERT Questions, sample papers, etc.

  • Practice writing presentable answers.

7. What is the best book for studying Class 11 Chemistry?

Ans: The best book for students preparing for Class 11 Chemistry is the one published by NCERT. The NCERT books continue to provide students of all classes with the study material that covers every topic in detail and with accuracy ensured by a team of professionals well versed with the subjects. CBSE prescribes only NCERT for all students. Thus, the NCERT books will best provide you with everything that is to be studied in Class 11 Chemistry.