NCERT Solutions for Class 11 Chemistry

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NCERT Solutions for Class 11 Chemistry

• 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 & Techniques
• Chapter 13: Hydrocarbons
• Chapter 14: Environmental Chemistry

NCERT Solutions Class 11 Chemistry Chapter Details and Exercises

NCERT Solutions for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry

The importance of chemistry, molecular mass, and atomic mass to students is discussed in this Chapter. The concept of conservation of mass, Avogadro’s law, and Dalton’s atomic theory are just a few of the significant theories and concepts presented in this Chapter. You’ll also have to figure out molecular weight, mass percent, and chemical concentration. You’ll learn about empirical and molecular equations, molarity, molality, and the concept of a mole.

The following topics were covered:

• Introduction to Chemistry: Its Importance and Scope.
• Dalton’s atomic theory: the idea of elements, atoms, and molecules. Nature of matter, principles of chemical combination, Dalton’s atomic theory: the concept of elements, atoms, and molecules.
• Chemical processes, stoichiometry, and calculations based on stoichiometry, atomic and molecular masses, mole concept and molar mass, percentage composition, empirical and molecular formula, chemical reactions, and stoichiometry

Also, access the following resources for Class 11 Chemistry Chapter 1 Some Basic Concepts of Chemistry

• NCERT Exemplar Solutions for Class 11 Chemistry Chapter 1 – Some Basic Concepts of Chemistry
• Class 11 Notes Chapter 1 Some Basic Concepts of Chemistry
• Some Basic Concepts Of Chemistry Questions for CBSE Class 11th

NCERT Solutions for Class 11 Chemistry Chapter 2 Structure of Atom

The quantum mechanical model of the atom, Thomson’s atomic model, subatomic particles, Bohr’s model, Rutherford’s atomic model, and Thomson’s atomic model will all be discussed. The link between frequency and wavelength and the energy involved with electromagnetic radiation and subatomic particles are discussed in this Chapter. You’ll learn how to write electron configurations and transitions in different shells, aiding your exam preparation.

The following subjects were discussed:

Atomic numbers, isotopes, and isobars were discovered as the electron, proton, and neutron. The limits of Thomson’s model. Rutherford’s model and its limitations, Bohr’s model and its limitations, the concept of shells and subshells, the dual nature of matter and light, de Broglie’s relationship, Heisenberg uncertainty principle, the concept of orbitals, quantum numbers, shapes of s, p, and d orbitals, rules for filling electrons in orbitals – Aufbau principle, Pauli’s exclusion principle, and Hund’s rule, electronic configuration of atoms

Also, access the following resources for Class 11 Chemistry Chapter 2 Structure of Atom

• NCERT Exemplar Solutions for Class 11 Chemistry Chapter 2 – Structure of Atom
• Class 11 Notes Chemistry Chapter 2 Structure of Atom
• Structure of Atom – Introduction, Thomson’s Model, and Calculation of Mass Number
• Structure Of Atom Questions for CBSE Class 11th

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

In terms of exam preparation, categorizing items is crucial. The majority of the questions on the final exam and several competitive assessments are found in this Chapter. As a result, understanding all of the issues covered in this Chapter is crucial. This Chapter also covers the periodic table’s s-block, p-block, d-block, and f-block elements and trends in physical and chemical properties and chemical reactivity. If students read this Chapter thoroughly, they will do well on the exam.

The following subjects were discussed:

Meaning of categorization, a brief history of periodic table evolution, modern periodic law and current form of the periodic table, periodic trends in element properties -atomic radii, ionic radii, inert gas radii, Ionization enthalpy, electron gain enthalpy, electronegativity, valency Elements having an atomic number greater than 100 have a different nomenclature.

Also, access the following resources for Class 11 Chemistry Chapter 3 Classification of Elements and Periodicity in Properties

• NCERT Exemplar Solutions for Class 10 Chemistry Chapter 3 – Classification of Elements and Periodicity in Properties
• Class 11 Notes Chemistry Chapter 3 Classification of Elements and Periodicity in Properties
• Classification Of Elements And Periodicity In Properties Questions for CBSE Class 11th

NCERT Solutions for Class 11 Chemistry Chapter 4 Chemical Bonding and Molecular Structure

In terms of exam preparation, categorizing items is crucial. The majority of the questions on the final exam and several competitive assessments are found in this Chapter. As a result, understanding all of the issues covered in this Chapter is crucial. This Chapter also covers the periodic table’s s-block, p-block, d-block, and f-block elements and trends in physical and chemical properties and chemical reactivity. If students read this Chapter thoroughly, they will do well on the exam.

The following subjects were discussed:

Chemistry is sometimes referred to be the “central science” because it is based on what we observe in our surroundings. This Chapter covers VSEPR Theory, Lewis Structures, Valence Bond Theory, Polar Character of Covalent Bonds, and Hydrogen Bonding, among other subjects. Students will learn to draw Lewis dot symbols for molecules, atoms, and polyatomic ions.

Also, access the following resources for Class 11 Chemistry Chapter 4 Chemical Bonding and Molecular Structure

• NCERT Exemplar Solutions for Class 11 Chemistry Chapter 4 – Chemical Bonding and Molecular Structure
• Chemical Bonding and Molecular Structure
• Class 11 Notes Chemistry Chapter 4 Chemical Bonding and Molecular Structure
• Chemical Bonding And Molecular Structure Questions for CBSE Class 11th

NCERT Solutions for Class 11 Chemistry Chapter 5 States of Matter

This Chapter looks at intermolecular forces and how they affect the physical state of a substance. It covers a wide range of issues relating to gaseous and liquid materials. This is why this Chapter is so important in the exam. Students will be able to understand Boyle’s Law, Charle’s Law, Gay Lussac’s Law, and Avogadro Law, all of which carry greater marks according to the exam format. Partition pressure, critical temperature and pressure, the Van der Waals force, and other intermolecular forces are discussed in this Chapter.

The following subjects were discussed:

Intermolecular interactions, forms of bonding, melting and boiling points, and gas laws’ function in clarifying the molecule’s notion are all discussed. Avogadro’s law, Boyle’s law, Charles’s law, Gay Lussac’s law, Avogadro’s number, ideal behavior, empirical derivation of gas equation Gas liquefaction, deviation from optimum behavior 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).

Also, access the following resources for Class 11 Chemistry Chapter 5 States of Matter

• NCERT Exemplar Solutions for Class 11 Chemistry Chapter 5 – States of Matter
• Important States Of Matter Formulas For JEE
• States of Matter – Solid, Liquid, Gaseous and Plasma State

NCERT Solutions for Class 11 Chemistry Chapter 6 Chemical Thermodynamics

It’s a branch of physics concerned with the relationship between heat and other forms of energy. Thermodynamic systems are divided into three categories based on how matter and energy are exchanged: open, closed, and isolated. Thermodynamic terminologies, applications, calorimetry, enthalpies, spontaneity, and Gibbs energy change and equilibrium, among other concepts, will be better understood by students. The problems in the NCERT Solutions are addressed systematically, based on the most recent CBSE syllabus.

The following subjects were discussed:

All covered are system concepts and types, environment, work, heat, energy, extensive and intensive qualities, and state functions.

Internal energy and enthalpy, heat capacity and specific heat, DU and DH measurement, Hess’s law of constant heat summation, enthalpy of bond dissociation, combustion, formation, atomization, sublimation, phase transition, ionization, solution, and dilution are all covered by the first law of thermodynamics. Thermodynamics’ second law (brief introduction)

Introduction of entropy as a state function, Gibb’s energy change for spontaneous and nonspontaneous processes, and criteria for equilibrium. Third law of thermodynamics (brief introduction).

Also, access the following resources for Class 11 Chemistry Chapter 6 Chemical Thermodynamics

• NCERT Exemplar Solutions for Class 11 Chemistry Chapter 6 – Chemical Thermodynamics
• Class 11 Notes Chemistry Chapter 6 Thermodynamics
• Thermodynamics Questions for CBSE Class 11th

NCERT Solutions for Class 11 Chemistry Chapter 7 Equilibrium

In this Chapter, students will learn about buffer solutions, equilibrium constants, and the common ion effect. Because this Chapter covers so many topics, it’s vital to understand each one thoroughly to pass the annual exam. The solutions thoroughly explain each idea, guaranteeing that all students’ questions are answered. This Chapter covers solid-liquid equilibrium, applications of the equilibrium constant, equilibria factors, acids, bases, salts, buffer solutions, and other subjects.

The following subjects were discussed:

Ionic equilibrium- ionization of acids and bases, strong and weak electrolytes, degree of ionization, ionization of polybasic acids, acid strength, the concept of pH, hydrolysis of salts (elementary idea), buffer solution, factors affecting equilibrium – Le Chatelier’s principle, factors affecting equilibrium – Le Chatelier’s principle, factors affecting equilibrium – Le Chatelier’s principle, factors affecting equilibrium – Le Chatelier’s principle, Solubility product, Henderson Equation common ion effect (with illustrative examples).

Also, access the following resources for Class 11 Chemistry Chapter 7 Equilibrium

• NCERT Exemplar Solutions for Class 11 Chemistry Chapter 7 – Equilibrium
• Class 11 Notes Chemistry Chapter 7 Equilibrium
• Chemical Equilibrium – Types, Conditions, Examples and Importance
• Equilibrium – Meaning, Types, Applications and Calculation

NCERT Solutions for Class 11 Chemistry Chapter 8 Redox Reactions

Redox reactions are, in reality, dealt with in electrochemistry. This Chapter is crucial for students to comprehend to perform well on the final exam. Students will be asked questions about redox reactions regarding electron transfer reactions, oxidation numbers, electrode processes, and the classic concept of a redox reaction. According to the CBSE board, students should complete the entire Chapter using the NCERT textbook.

The following subjects were discussed:

Concepts of oxidation and reduction, redox reactions, oxidation number, balancing redox reactions in terms of electron loss and gain, and oxidation number change, redox reaction applications

Also, access the following resources for Class 11 Chemistry Chapter 8 Redox Reactions

• NCERT Exemplar Solutions for Class 11 Chemistry Chapter 8 – Redox Reactions
• Class 11 Notes Chemistry Chapter 8 Redox Reactions
• Redox Reactions Questions for CBSE Class 11th
• Redox Reactions – Examples, Types and Equations
• Applications of Redox Reactions – Redox Reaction Examples

NCERT Solutions for Class 11 Chemistry Chapter 9 Hydrogen

Hydrogen is the lightest Element, having only one electron and a proton. The element dihydrogen is the most abundant in the universe. Hydrogen is a vital element that makes up 80% of the entire mass of the cosmos. Students must understand this part to earn good grades on the final exam. Dihydrogen’s preparation, properties, and applications in everyday life will also be covered. Students may find it difficult to grasp all these things at once, so having the appropriate study resources available can assist you.

The following subjects were discussed:

Hydrogen’s position in the periodic table, isotopes, preparation, qualities, and uses, hydrides-ionic, covalent, and interstitial; physical and chemical properties of water, heavy water, hydrogen peroxide -preparation, reactions, structure, and use; hydrogen as a fuel

Also, access the following resources for Class 11 Chemistry Chapter 9 Hydrogen

• NCERT Exemplar Solutions for Class 11 Chemistry Chapter 9 – Hydrogen
• Class 11 Notes Chemistry Chapter 9 Hydrogen

NCERT Solutions for Class 11 Chemistry Chapter 10 s-Block Elements

Students will study alkali and alkaline earth metals found in groups 1 and 2 of the periodic table. Some topics discussed are the physical and chemical properties of s-block elements, generic aspects of compounds, and notable compounds like calcium. The biological relevance of calcium and magnesium is also explained in this Chapter. The periodic table and the elements that make it up are among the topics that can be studied. As a result, to earn good grades, students are strongly recommended to understand these concepts thoroughly.

The following subjects were discussed:

Elements from Groups 1 and 2 Introduction, electronic configuration, occurrence, anomalous properties of the first Element of each group, diagonal relationship, trends in property variation (such as ionization enthalpy, atomic and ionic radii), trends in chemical reactivity with oxygen, water, hydrogen, and halogens, and applications.

Sodium Carbonate, Sodium Chloride, Sodium Hydroxide, and Sodium Hydrogen Carbonate: Preparation and Properties, Biological Importance of Sodium and Potassium. The industrial uses of calcium oxide and calcium carbonate and the biological importance of magnesium and calcium.

Also, access the following resources for Class 11 Chemistry Chapter 10 s-Block Elements

• NCERT Exemplar Solutions for Class 11 Chemistry Chapter 10 – The s-Block Elements
• Class 11 Notes Chemistry Chapter 10 s-Block Elements
• s-block Elements Questions for CBSE Class 11th

NCERT Solutions for Class 11 Chemistry Chapter 11 p – Block Element

Between the 13th and the 18th groups, the p-block elements are discovered. Because this Chapter contains so many concepts, students should go over them repeatedly. Students will learn about the p-block elements in which the final electron arrives or is found on the p-subshell. This Chapter covers the boron family, important boron compounds, uses of aluminium and boron, the carbon family, allotropes of carbon, and key silicon and carbon compounds, to name a few topics.

The following topics were covered:

Group 13 Elements: Overview, electronic configuration, occurrence, property variation, oxidation states, chemical reactivity trends, and anomalous features of the group’s first Element. Physical and chemical properties of boron, as well as several significant compounds: Borax, Boric acid, Boron Hydrides, and Aluminium: Acid-Alkali Reactions and Applications

Group 14 Elements: Overview, electronic configuration, occurrence, property variation, oxidation states, chemical reactivity trends, and anomalous behaviour of the initial elements. Catenation of carbon atoms, allotropic forms, physical and chemical properties; applications of several significant compounds: oxides Silicon Tetrachloride, Silicones, Silicates, and Zeolites are all important Silicon compounds with a variety of applications.

Also, access the following resources for Class 11 Chemistry Chapter 11 p – Block Element

• NCERT Exemplar Solutions for Class 11 Chemistry Chapter 11 – p – Block Element
• Introduction to p-Block Elements – Properties and Uses
• Class 11 Notes Chemistry Chapter 11 p-Block Elements

NCERT Solutions for Class 11 Chemistry Chapter 12 Organic Chemistry: Some Basic Principles and Techniques

Both organic and inorganic chemistry are essential for passing when it comes to exam preparation. This Chapter covers organic compounds, structural representation, classification, nomenclature, isomerism, organic compound purification, and quantitative analysis. If students are having trouble grasping these concepts using the NCERT textbook, they can download the PDF solutions, which are free to download.

The following topics were covered:

Introduction to organic compounds, purification procedures, qualitative and quantitative analysis, classification, and IUPAC nomenclature Induction, electrometric effect, resonance, and hyperconjugation are examples of electronic displacements in a covalent bond. Free radicals, carbocations, carbanions, electrophiles and nucleophiles, kinds of organic reactions: homolytic and heterolytic fission of a covalent link

Also, access the following resources for Class 11 Chemistry Chapter 12 Organic Chemistry: Some Basic Principles and Techniques

• NCERT Exemplar Solutions for Class 11 Chemistry Chapter 12 – Organic Chemistry: Some Basic Principles and Techniques
• Organic Chemistry – Some Basic Principles and Techniques
• Class 11 Notes Chemistry Chapter 12 Organic Chemistry: Some Basic Principles and Techniques

NCERT Solutions for Class 11 Chemistry Chapter 13 Hydrocarbons

Organic chemistry studies organic molecules’ properties, structure, interactions, composition, and synthesis. Among the subjects are alkanes and how they’re produced from alkyl halides, unsaturated hydrocarbons, and carboxylic acids. According to the CBSE syllabus, students will also learn about alkanes’ physical and chemical properties. Because this Chapter is so important in the exam, students must pay great attention to all the topics and thoroughly memorize them to do well.

The following topics were covered:

• Classification of Hydrocarbons
• Aliphatic Hydrocarbons

Nomenclature, isomerism, conformation (just for ethane), physical attributes, chemical reactions, free radical halogenation, combustion, and pyrolysis. Nomenclature, double bond structure (ethene), geometrical isomerism, physical qualities, methods of synthesis, chemical reactions: hydrogen addition, halogen addition, water, hydrogen halides (Markovnikov’s addition and peroxide effect), ozonolysis, oxidation, mechanism of electrophilic addition Alkynes – Nomenclature, triple bond structure (ethyne), physical properties, preparation methods, chemical reactions: acidic character of alkynes, addition reaction of hydrogen, halogens, hydrogen halides, and water

Aromatic Hydrocarbons:

Introduction, Benzene: resonance, aromaticity, chemical properties: mechanism of electrophilic substitution, IUPAC nomenclature In monosubstituted Benzene, nitration, sulphonation, halogenation, Friedel Craft’s alkylation, and acylation, and the directional influence of functional groups Toxicity and carcinogenicity.

Also, access the following resources for Class 11 Chemistry Chapter 13 Hydrocarbons

• NCERT Exemplar Solutions for Class 11 Chemistry Chapter 13 – Hydrocarbons
• Class 11 Notes Chemistry Chapter 13 Hydrocarbons
• Important Topic: Hydrocarbons

NCERT Solutions for Class 11 Chemistry Chapter 14 Environmental Chemistry

This Chapter introduces numerous concepts related to the environment, including water pollution, air pollution, soil pollution, and their causes. Students will also learn about pesticides to avoid soil contamination and pollution control methods like trash disposal. By thoroughly studying this Chapter, students will gain knowledge of the pollution created by our activities in nature.

The following subjects were discussed:

Environmental pollution – air, water, and soil pollution, chemical reactions in the atmosphere, smog, major atmospheric pollutants, acid rain, ozone and its reactions, effects of ozone layer depletion, greenhouse effect, and global warming – pollution caused by industrial wastes, green chemistry as an alternative tool for reducing pollution, pollution control strategies.

Also, access the following resources for Class 11 Chemistry Chapter 14 Environmental Chemistry

• NCERT Exemplar Solutions for Class 11 Chemistry Chapter 14 – Environmental Chemistry
• CBSE Notes Class 11 Chemistry Chapter 14 Environmental Chemistry
• Environmental Chemistry Questions for CBSE Class 11th

Marks Distribution in NCERT Solutions for Class 11 Chemistry

Efficiency in exam preparation requires insight into the marks allocation for each chapter in Class 11 Chemistry. Knowledge of the marks weightage empowers students to prioritize topics that hold higher significance and demand focused attention. However, it’s crucial not to disregard chapters with lower weightage.

The theory exam for Class 11 Chemistry constitutes 70 marks, complemented by 30 marks for practicals and internal assessment. CBSE’s Class 11 Chemistry syllabus encompasses 14 chapters, thoughtfully divided into units for effective marks distribution. Stay informed and excel in your exam-readiness journey!