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Combustion and Oxidation Reactions (Deducted from CBSE 2021-22 examination) Video Lecture - Class 10
FAQs on Combustion and Oxidation Reactions (Deducted from CBSE 2021-22 examination) Video Lecture - Class 10
| 1. What is combustion? |  |
Ans. Combustion is a chemical reaction that occurs between a fuel and an oxidizing agent, typically oxygen, resulting in the release of energy in the form of heat and light. It is an exothermic process where the fuel combines with oxygen to produce carbon dioxide, water, and other byproducts.
| 2. What are the different types of combustion reactions? | |
Ans. There are three main types of combustion reactions: complete combustion, incomplete combustion, and spontaneous combustion.
- Complete combustion occurs when a fuel burns in the presence of sufficient oxygen, resulting in the complete oxidation of the fuel and the production of carbon dioxide and water.
- Incomplete combustion occurs when there is a limited supply of oxygen, leading to the formation of carbon monoxide, water, and carbon particles (soot) instead of carbon dioxide.
- Spontaneous combustion refers to the ignition of a substance without an external ignition source due to heat generated within the material itself, such as the spontaneous combustion of oily rags.
| 3. How does combustion contribute to air pollution? | |
Ans. Combustion processes can contribute to air pollution by releasing various pollutants into the atmosphere. When fossil fuels are burned, they release carbon dioxide, a greenhouse gas that contributes to global warming. Incomplete combustion can also lead to the emission of carbon monoxide, which is a toxic gas. Additionally, combustion of certain fuels can release nitrogen oxides and sulfur dioxide, which are major contributors to air pollution and can cause respiratory problems and acid rain.
| 4. What safety precautions should be taken during combustion processes? | |
Ans. During combustion processes, it is important to take certain safety precautions to prevent accidents and ensure safety. Some of these precautions include:
- Ensuring proper ventilation to avoid the buildup of toxic gases.
- Using appropriate fire safety equipment, such as fire extinguishers, in case of emergencies.
- Avoiding the use of flammable materials near open flames or hot surfaces.
- Following proper handling and storage procedures for fuels and combustible substances.
- Regular maintenance and inspection of combustion equipment to prevent malfunctions or leaks.
| 5. Can you give examples of everyday combustion reactions? | |
Ans. Yes, there are several examples of everyday combustion reactions that we encounter in our daily lives. Some common examples include:
- Burning of wood or coal in fireplaces or stoves for heating and cooking purposes.
- Combustion of gasoline in car engines to produce energy for transportation.
- Burning of natural gas or propane in gas stoves for cooking.
- Combustion of candles or oil lamps for lighting.
- Combustion of natural gas or oil in power plants to generate electricity.
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