Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Oxidation reduction reaction

2,831 views

Published on

Oxidation and reduction reactions

Published in: Education, Technology, Business
  • Be the first to comment

Oxidation reduction reaction

  1. 1. CBSE - 10 Chemical Reactions and EquationsChemistry Types of Chemical Reactions Oxidation - Reduction Combustion of gasoline, burning of wood and burning of food in our body are examples of oxidation.Subtopic ID: 01.03.04
  2. 2. CBSE - 10 Chemical Reactions and EquationsChemistry Types of Chemical Reactions Oxidation - Reduction An oxidation reaction occurs as a result of either the addition of oxygen or the removal of hydrogen. A reduction reaction occurs by either the removal of Oxidation Reduction oxygen or the addition of hydrogen. Addition of oxygen Removal of oxygen Removal of Addition of hydrogen hydrogenSubtopic ID: 01.03.04
  3. 3. CBSE - 10 Chemical Reactions and EquationsChemistry Types of Chemical Reactions Oxidation - Reduction Oxidation and reduction occur simultaneously in a reaction: hence it is called redox reaction.Subtopic ID: 01.03.04
  4. 4. CBSE - 10 Chemical Reactions and EquationsChemistry Types of Chemical Reactions Oxidation - Reduction Zinc oxide undergoes reduction by losing oxygen to become zinc, and carbon undergoes oxidation by gaining oxygen, to become carbon monoxide. Carbon Zinc oxide ZincSubtopic ID: 01.03.04
  5. 5. CBSE - 10 Chemical Reactions and EquationsChemistry Types of Chemical Reactions Oxidation - Reduction Click the view answer button to find out the product. Identify oxidation and reduction. H2S + Cl2  2HCl + S View answerSubtopic ID: 01.03.04
  6. 6. CBSE - 10 Chemical Reactions and EquationsChemistry Types of Chemical Reactions Oxidation - Reduction Hydrogen sulphide undergoes oxidation by the removal of hydrogen. Chlorine undergoes reduction by the addition of hydrogen. H2S + Cl2  2HCl + SSubtopic ID: 01.03.04
  7. 7. CBSE - 10 Chemical Reactions and EquationsChemistry Types of Chemical Reactions Oxidation - Reduction A compound is dissociated Thermal Dissociation into simple compounds on heating. Since this dissociation takes place due to heating it is called ‘thermal dissociation’. Thermal = By heating Dissociation = Splitting into simple compoundsSubtopic ID: 01.03.04
  8. 8. CBSE - 10 Chemical Reactions and EquationsChemistry Types of Chemical Reactions Oxidation - Reduction Hydrogen peroxide dissociates Thermal Dissociation on heating, to give water and oxygen, in the presence of In the presence of MnO2 manganese oxide. Heat 2H2O2 2H2O + O2 MnO2 Hydrogen Water Oxygen peroxideSubtopic ID: 01.03.04
  9. 9. CBSE - 10 Chemical Reactions and EquationsChemistry Types of Chemical Reactions Oxidation - Reduction Click the view answer button Thermal Dissociation to find out the product. What happens when ammonia is heated in the presence of tungsten as catalyst? View answerSubtopic ID: 01.03.04
  10. 10. CBSE - 10 Chemical Reactions and EquationsChemistry Types of Chemical Reactions Oxidation - Reduction Ammonia dissociates into Thermal Dissociation nitrogen and hydrogen in the presence of tungsten. Ammonia dissociates into nitrogen and hydrogen in the presence of tungsten. Heat 2NH3 N2 + 3H2Subtopic ID: 01.03.04
  11. 11. CBSE - 10 Chemical Reactions and EquationsChemistry Types of Chemical Reactions Oxidation - Reduction Iron articles shiny when they Corrosion are new, but they loose their lustre on exposure to air and moisture. This process is called rusting. Corrosion causes damage to iron structures. We loose enormous amount of money by replacing damages of iron structures.Subtopic ID: 01.03.04
  12. 12. CBSE - 10 Chemical Reactions and EquationsChemistry Types of Chemical Reactions Oxidation - Reduction Fats and oils are also Rancidity oxidised and get foul smell and taste change. This phenomenon is called rancidity. We can prevent rancidity by adding antioxidants or keeping the food in air tight containers. ExpiredSubtopic ID: 01.03.04

×