Ncert – class 8- science – Chapter 3: Coal and Petroleum 1 Welcome to your Ncert - class 8- science - Chapter 3: Coal and Petroleum 1 1. The advantage of ________ is that it can be used directly as fuel in homes and factories due to the ability to supply through pipes. All of these LPG Petroleum CNG None 2. Choose the odd one out from the following and give reason for your choice. Charcoal Coal Petrol Firewood None 3. Air is a natural resource and cannot be exhausted by human activities. It is known as an inexhaustible natural resource. Which of the following is another inexhaustible natural resource? Sunlight Mineral Coal Petroleum None 4. Which petroleum product is used for surfacing of roads? Coal tar Bitumen Lubricating oils Paraffin wax None 5. Mark the right statement about coal: Coal is a fossil fuel. Coal is an exhaustible natural resource. All of these. Coal was formed from dead remains of trees and plants buried deep beneath the earth's surface. None 6. Natural gas is found as: layer below petroleum oil deep underground layer below the glacier layer above hot-beds layer above petroleum oil deep underground None 7. Which of the following is used as fuel in an electric generator? Kerosene CNG Petrol Diesel None 8. Which of the following petroleum product is used for dry cleaning? Petrol Kerosene Diesel Grease None 9. The gas which occurs above the petroleum oil trapped under the rocks is called __________. petroleum gas natural gas coal gas bio gas None 10. Identify the chemical which is used to detect leakage of LPG ; Ethyl mercaptan Methyl mercaptan Propyl mercaptan n-butyl mercaptan None 11. The inorganic origin of petroleum is indicated by the fact that Petroleum contains traces of chlorophyll Its constituents can be separated by fractional distillation Carbon and hydrocarbon can combine by absorption of solar energy to give hydrocarbons Oil fields are located with the help of seismograph None 12. Advantage of use of natural gas as fuel is: relatively expensive storage it is dangerous in case of irresponsible use natural gas has a long processing process it causes less air pollution None 13. Sewer gas is a complex mixture of: toxic gases inert gases toxic and nontoxic gases nontoxic gases None 14. Which of the following is obtained at lowest temperature by fractional distillation of petroleum? Diesel oil Heavy oil Gasoline Kerosene None 15. Which two transportation means move nearly two-thirds of all U.S. coal shipments? railroads and trucks trucks and covered conveyor systems railroads and barges barges and coal slurry pipelines None 16. Choose the odd one out from the following and give reason for your choice. Sun Wind Natural gas Biomass None 17. Which component, obtained from the refining of petroleum, is used as a solvent in petrochemicals. Kerosene Naphthalene Tar Petroleum coal None 18. Dyes are used for coloring various materials like cloth and plastic. Starting material for dyes are obtained from: baking ovens asphalt coal tar zinc None 19. Which of the following can not be taken to conserve energy resources (like coal and petroleum)? Use stairs to climb at least up to three floors of a building instead of taking a lift. This will save electricity. The use of biogas as domestic fuel should be encouraged in rural areas. Pressure cookers should not be used for cooking food as the food is cooked in a cooker at very high pressure. Solar cookers should be used to cook food whenever possible. None 20. Which kind of materials (resources) can be extinct in future? Both A and B None of these Non-renewable Renewable None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
