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NCERT Exemplar Class 11 Chemistry Chapter 8 Solutions: Redox Reactions

NCERT Exemplar Solutions for Class 11 Chemistry Chapter 8 illustrate redox reactions which are the reactions where oxidation and reduction occur at a similar time. The important topics in this chapter of NCERT Class 11 Chemistry Exemplar comprise the classical idea of redox reactions – oxidation and reduction reactions, oxidation number, redox reactions in terms of electron transfer reactions, and redox reactions and electrode processes. The NCERT Exemplar solutions are a major reference guide to help you score well in the class 11 CBSE exams as well as the entrance exams.

In this chapter of NCERT Exemplar Class 11 Chemistry Solutions, you will see different reactions and activities that help you in understanding the chapter in a better way. It explains the balancing of redox reactions, limitation of the concept of oxidation number, redox reactions as the basis for titration, and rules for assigning oxidation numbers. There are 6 exercises in chapter ‘Redox Reactions’ with a total number of 38 exemplar problems. Practising the questions based on these topics will help you clear your concepts.

All the exercises have different types of questions available which in turn will help to prepare for the exams well. You can follow the NCERT Exemplar solutions for Chapter 8 of Class 11 Chemistry provided by our expert Chemistry teachers for your better understanding of the concepts.

Important Topics for NCERT Chemistry Exemplar Solutions Class 11 Chapter 8 – Redox Reactions

Redox Reaction 

A redox reaction can be described as a chemical reaction in which electrons are transported between two reactants contributing to it. This transmission of electrons can be recognized by detecting the changes in the oxidation states of the reacting species.

Oxidation

Oxidation is a chemical reaction in which the loss of electrons at the time of a reaction by a molecule, atom, or ion. It happens when the oxidation state of a molecule, atom, or ion is raised.

Reduction

The reduction is a chemical reaction that includes the addition of electrons by one of the atoms comprising the reaction between two chemicals. The term mentions the element that receives electrons, as the oxidation state of the component that gains electrons is dropped.

Oxidation Number

The oxidation number is also known as the oxidation state of an element. It refers to the total number of electrons that an atom either gains or losses in order to create a chemical bond with another atom.

Limitations of Concept of Oxidation Number

The limitations of the concept of oxidation number are listed as follows:

  • There are times when the result of the concept of the oxidation state does not look like that achieved from a classical approach.
  • Additionally, it is hard to categorize some reactions as redox reactions on the basis of the concept of oxidation number.

Electrode Processes

Electrode processes refer to the electrochemical conversions that happen at an electrode-electrolyte interface where a charge is transported through the interface and an electric current flows.

Exercise-wise Discussion of NCERT Chemistry Exemplar Solutions Class 11 Chapter 8 – Redox Reactions

Exercise 8.1 – Multiple Choice Questions I

Exercise 8.1 consists of 11 exemplar problems. The questions available in this exercise are multiple-choice questions. In every question, you will be provided with four options from which you have to choose the right answer.

Exercise 8.2 – Multiple Choice Questions II

This exercise also consists of 5 multiple-choice questions. In these questions, two or more options may be correct.

Exercise 8.3 –Short Answer Types Questions

This exercise of Chapter 8 – Redox Reactions consists of 10 short answer type questions based on the redox reactions – oxidation and reduction reactions, oxidation number, redox reactions in terms of electron transfer reactions, and redox reactions and electrode processes.

Exercise 8.4 – Match the following

In this exercise, there are 2 exemplar problems to solve. In these questions, you have to match the options given in column I to the options given in column II.

Exercise 8.5 – Assertion and Reason Type

There are 4 exemplar problems in this exercise. In these questions, a statement of Assertion followed by a statement of Reason is given. You have to choose the correct option out of the choices given.

Exercise 8.6 – Long Answer Type Questions

Exercise 8.6 contains a total of 6 exemplar problems. They are long answer type questions based on the main concepts of the chapter.

Why Use NCERT Chemistry Exemplar Solutions Class 11 Chapter 8 – Redox Reactions by Instasolv?

  • NCERT Class 11 Exemplar Solutions for Chemistry provided by Instasolv can be accessed easily. 
  • These solutions are free of cost and you can prepare with the help of these solutions anywhere anytime.
  • Preparing with the help of these NCERT Exemplar solutions is enough. It is not essential to take reference from any other book to prepare for the CBSE exams.
  • These solutions prepared by the experts comprises detailed and accurate explanations of exemplar problems available in the textbook. 
  • These solutions follow the same pattern and syllabus as that of CBSE Class 11 Chemistry.