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NCERT Solutions for Class 11 Chemistry Chapter 8 – Redox Reactions

NCERT Solutions for Class 11 Chemistry Chapter 8 – Redox Reactions are designed to help you overcome the difficulties you face in solving the textbook questions. It further enhances your knowledge about Redox reaction which comes handy while taking any examination. The NCERT Solutions are devised by experienced subject experts at Instasolv ensuring the accuracy and quality of solutions given. Chapter 8 helps grasp the understanding of Reduction and Oxidation (Redox) Reactions with ease.

Just knowing the concepts covered in Chapter 8 is not going to help you do well in exams. You will have to know how to apply the knowledge gained from the chapter in solving problems. For this very purpose, the CBSE NCERT Class 11 Chemistry Chapter 8 has been designed. We have covered every topic and questions in this chapter to help you boost your understanding.

A total of 40 questions covering the different concepts of Chapter 8 have been divided into 2 exercises. The exercises have been devised to ensure that you can test your retention capacity and anticipate the kind of questions you will be asked in the exams. For solving these exercises, NCERT Solutions for Chemistry Class 11 chapter 8 by Insatsolv can be your fruitful guide. 

NCERT Solutions for Class 11 Chemistry Chapter 8- Redox Reactions Summary

In this chapter, you’ll learn about the following important topics that are based on redox reaction. These deepen your knowledge about chemical reactions. The conditions and outcomes of reactions are also taught in this chapter through several examples. Further, you learn about the implication of these reactions. The important topics discussed in this chapter are:

  1. Oxidation and reduction
  2. Rules to assign and calculate Oxidation number
  3. Balancing of Redox reactions
  4. Types of Redox reactions
  5. Redox couple
  6. Electrochemical cell
  7. Electrode potential
  8. Standard hydrogen electrode
  9. Electrochemical series
  10. Redox reactions as the basis for titrations
  • Oxidation and Reduction:
  • Classical concept:
    1. Oxidation: Addition of oxygen (electronegative element) and removal of Hydrogen (electropositive element)
    2. Reduction: Addition of hydrogen and removal of oxygen.
  • Electron transfer concept:
    1. Oxidation: loss of electrons
    2. Reduction: gain of electrons
  • Rules to assign and calculate Oxidation number: This section teaches you the basic concept of oxidation numbers and the ways to calculate the same for different elements.
  • Balancing of Redox Reactions: Here you learn two different methods of balancing the redox reaction.
    1. Oxidation number method
    2. Half Reaction method (basis: splitting the Redox reaction into oxidation and reduction halves)
  • Types of Redox reactions: This section extensively deals with the types of redox reactions with examples and their basic structure. The types of reactions discussed in this chapter are:
    1. Combination reaction: Two or more reactants reacted or mixed to form a single product. For example: a + b —> ab
    2. Decomposition reaction: A reactant breaking into its constituent parts when subjected to heat, passing current etc. For example: H2O —> H2 + O2
    3. Displacement reaction: Reaction between elements of a compound is known as displacement reaction. An element displaces less reactive elements from its compound. For example: CuSO4 + Zn —> ZnSO4 + Cu
    4. Disproportionation reactions: Reaction in which the same compound simultaneously undergoes reduction and oxidation. For example: P4 + 3NaOH + 3H2O —> 3NaH2PO2 + PH3  
  • Redox couple: Here you learn about redox couples which go under reaction together.
  • Electrochemical cell: Based on the reactions you learnt in this chapter, Electrochemical cells are introduced as the cell in which a spontaneous indirect Redox reaction converts chemical energy to electric energy.
  • Electrode potential: This section illustrates the difference between electrode potentials with examples and explanations.
  • Standard hydrogen electrode (SHE): This is another kind of electrode used to make cells which you’ll learn in this section.
  • Electrochemical Series: Here you learn about the series of chemical elements arranged in order of their electrode potentials.
  • Redox reaction as the basis for titrations: This section throws light on the method of volumetric analysis in which a volume of one reagent (the titrant) when added to a known volume of another reagent slowly from a burette until an endpoint is reached.

Discussion of Exercises of NCERT Solutions for Chapter 8- Redox Reactions

  1. The first two questions in the exercise deal with the oxidation number of compounds.
  2. Next few questions are based on the redox reactions and finding the output of a given series.
  3. Some of the questions in the exercise deal with the oxidation state and finding oxidising agents to complete a redox reaction.
  4. Few questions are based on balancing the reaction and filling the blanks in the reactions.

Benefits of NCERT Solutions for Chemistry Class 11th Chapter 8 by Instasolv

To give you the ultimate opportunity to learn the varied and difficult concepts associated with “Redox Reactions” in an elaborate and easy-to-understand manner, the NCERT solutions for Class 11 Chemistry Chapter 8 has been prepared by Instasolv. This provides solutions along with explanations to improve your understanding. The solution and guide prepare you for the exams and helps you boost your score.