Course Content
CHAPTER 10: HALOALKANES AND HALOARENES
Topic Name 10 Haloalkanes and Haloarenes 10.1 Classification 10.2 Nomenclature 10.3 Nature of C–X Bond 10.4 Methods of Preparation of Haloalkanes 10.5 Preparation of Haloarenes 10.6 Physical Properties 10.7 Chemical Reactions
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CHAPTER 11: ALCOHOLS, PHENOLS AND ETHERS
Topic Name 11 Alcohols, Phenols and Ethers 11.1 Classification 11.2 Nomenclature 11.3 Structures of Functional Groups 11.4 Alcohols and Phenols 11.5 Some Commercially Important Alcohols 11.6 Ethers
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Class 12th Chemistry Online Class For 100% Result
About Lesson
Class 12th Chemistry || Chapter 3 Electrochemistry || Part 1
Class 12th Chemistry || Chapter 3 Electrochemistry || Part 2

Introduction

  • Electrochemistry refers to the conversion of chemical energy to electrical energy and vice versa. It is basically the study of Production of electricity from energy released during spontaneous reaction and use of electrical energy to bring about non-spontaneous chemical transformation.
  • A spontaneous chemical reaction is a reaction which happens on its own and releases free energy. This reaction produces electric energy from chemical reaction. For example, burning of coal, rusting of iron, melting of ice, etc.
  • On the other hand non-spontaneous reaction occurs by providing an external source like electricity. For example, Hydrolysis of water.
  • Electrochemistry is used for the following purposes.
  • Production of metals like sodium hydroxide, chlorine, fluorine and many other chemicals.
  • It is also used for purification of metals.
  • The process is used in batteries as well as fuel cells which converts the chemical energy into electrical energy and is used in several instruments and devices.
  • This process is used in electroplating.
  • The reactions carried out using the process of electrochemistry are energy effective and less polluting.

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