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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CHAPTER 13: AMINES
Topic Name 13 Amines 13.1 Structure of Amines 13.2 Classification 13.3 Nomenclature 13.4 Preparation of Amines 13.5 Physical Properties 13.6 Chemical Reactions 13.7 Method of Preparation of Diazonium Salts 13.8 Physical Properties 13.9 Chemical Reactions 13.10 Importance of Diazonium Salts in Synthesis of Aromatic Compounds
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CHAPTER 14: BIOMOLECULES
Topic Name 14 Biomolecules 14.1 Carbohydrates 14.2 Proteins 14.3 Enzymes 14.4 Vitamins 14.5 Nucleic Acids 14.6 Hormones
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CHAPTER 15: POLYMERS
Topic Name 15 Polymers 15.1 Classification of Polymers 15.2 Types of Polymerisation Reactions 15.3 Molecular Mass of Polymers 15.4 Biodegradable Polymers 15.5 Polymers of Commercial Importance
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CHAPTER 16: CHEMISTRY IN EVERYDAY LIFE
Topic Name 16 Chemistry in Everyday Life 16.1 Drugs and their Classification 16.2 Drug-Target Interaction 16.3 Therapeutic Action of Different Classes of Drugs 16.4 Chemicals in Food 16.5 Cleansing Agents
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Class 12th Chemistry Online Class: Excelling in CBSE Board Exams
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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