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प्रश्न
What are the main uses of coal and petroleum products?
उत्तर
Following are the main uses of coal and petroleum products:
- Coal is used in homes and industries as a fuel. It is also used to generate electricity in power plants.
- Petroleum products (such as petrol and diesel) are used as fuels in vehicles. Other products (like kerosene and LPG) are used as domestic fuels for cooking
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संबंधित प्रश्न
Process of separation of different constituents from petroleum is called ______.
Explain the process of formation of petroleum.
Fill in the following blanks with suitable words :
LPG is a ........... fuel but biogas is not a..........fuel.
A man bought a device X which could cook pulses, vegetables and rice without using any fuel like wood, coal, kerosene or LPG, etc. This device did not work at night. It also took a lot of time for cooking.
(a) Name the device X.
(b) What is the source of energy which cooks food in this device?
(c) What is the name of the process which traps energy in this device?
(d) State one advantage (other than saving on fuel) or using such a device for cooking food.
List the products of combustion of fossil fuels. What are their adverse effects on the environment?
Write two disadvantages of burning fossil fuels.
Match the following.
| Octane rating | Diesel |
| Cetane rating | Methane |
| Simplest hydrocarbon | Petrol |
| Peat | Bown in colour |
| Lignite | First stage coal |
Fill in the blanks in the following sentence.
Petroleum, ______ and ______ are fossil fuels.
Coal and petroleum are formed from the dead remains of organisms and are known as ______.
Write some important uses of the various constituents of petroleum.
