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Oxidation reduction reaction
The document discusses various types of chemical reactions including oxidation-reduction, thermal dissociation, corrosion, and rancidity. It provides examples of oxidation-reduction reactions and explains that they involve the loss or gain of oxygen or hydrogen. Thermal dissociation reactions are described as reactions where compounds split into simpler substances when heated. Corrosion and rancidity are discussed as oxidation processes that damage iron structures and cause fats and oils to smell foul, respectively.
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Oxidation reduction reaction
- 1. CBSE - 10 Chemical Reactions and Equations Chemistry 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. CBSE - 10 Chemical Reactions and Equations Chemistry 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 hydrogen Subtopic ID: 01.03.04
- 3. CBSE - 10 Chemical Reactions and Equations Chemistry 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. CBSE - 10 Chemical Reactions and Equations Chemistry 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 Zinc Subtopic ID: 01.03.04
- 5. CBSE - 10 Chemical Reactions and Equations Chemistry 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 answer Subtopic ID: 01.03.04
- 6. CBSE - 10 Chemical Reactions and Equations Chemistry 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 + S Subtopic ID: 01.03.04
- 7. CBSE - 10 Chemical Reactions and Equations Chemistry 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 compounds Subtopic ID: 01.03.04
- 8. CBSE - 10 Chemical Reactions and Equations Chemistry 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 peroxide Subtopic ID: 01.03.04
- 9. CBSE - 10 Chemical Reactions and Equations Chemistry 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 answer Subtopic ID: 01.03.04
- 10. CBSE - 10 Chemical Reactions and Equations Chemistry 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 + 3H2 Subtopic ID: 01.03.04
- 11. CBSE - 10 Chemical Reactions and Equations Chemistry 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. CBSE - 10 Chemical Reactions and Equations Chemistry 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. Expired Subtopic ID: 01.03.04