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