Class 11th Chemistry-Chapter 10 – Electrochemistry

Full Chapter Notes

Exercise Notes

MCQ’s

Class 11th Chemistry Chapter 10, Electrochemistry, explores the relationship between chemical reactions and electrical energy. Here’s a general overview:

1. Introduction to Electrochemistry:
   • Defines electrochemistry as the study of chemical processes that involve the movement of electrons and the relationship between chemical energy and electrical energy.
2. Types of Electrochemical Cells:
   • Discusses two main types of electrochemical cells:
     • Galvanic (Voltaic) Cells: Convert chemical energy into electrical energy through spontaneous redox reactions.
     • Electrolytic Cells: Use electrical energy to drive non-spontaneous chemical reactions.
3. Redox Reactions:
   • Explains oxidation-reduction (redox) reactions, where oxidation involves the loss of electrons and reduction involves the gain of electrons.
   • Introduces oxidation states and how to determine them for different elements in compounds.
4. Electrode and Electrolyte:
   • Defines electrodes (anode and cathode) and electrolytes, explaining their roles in electrochemical cells.
   • Describes the movement of ions in the electrolyte and electrons in the external circuit.
5. Cell Notation:
   • Introduces the convention for writing cell notation, showing the components of the electrochemical cell, including the anode, cathode, and salt bridge.
6. Nernst Equation:
   • Presents the Nernst equation, which relates the cell potential to the concentrations of the reactants and products, allowing for the calculation of cell potential under non-standard conditions.
7. Electrochemical Series:
   • Discusses the electrochemical series, a list of standard electrode potentials for various half-reactions, which helps predict the feasibility of redox reactions.
8. Applications of Electrochemistry:
   • Highlights the practical applications of electrochemistry in batteries, fuel cells, electroplating, and corrosion prevention.
9. Corrosion and its Prevention:
   • Explains the process of corrosion as an electrochemical phenomenon and discusses methods to prevent corrosion, such as galvanization and the use of protective coatings.
10. Electrolytic Processes:
    • Introduces the concept of electrolysis and its applications in various industries, including electrolysis of water and the production of chemicals like chlorine and hydrogen.

This chapter lays the foundation for understanding how electrical energy can be harnessed from chemical reactions and vice versa, forming a critical part of both theoretical and applied chemistry.