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प्रश्न
What is known as destructive distillation? Write about the products obtained from fractional distillation of petroleum.
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उत्तर
Coal when heated in the absence of air does not bum but produces many by-products. This process of heating coal in the absence of air is called destructive distillation of coal.
Products obtained from petroleum:
- Liquefied Petroleum Gas or LPG
- Diesel and petrol
- Kerosene
- Lubricating oil
- Paraffin
- Bitumen or asphalt
- Refinery Gas
- Naphtha
- Fuel Oil
- Chemicals
- Jet fuel
- Waxes
- Polishes
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संबंधित प्रश्न
Explain the process of formation of petroleum.
Fill in the following blank with suitable word :
When a fuel burns in an insufficient supply of air, then some poisonous gas called ......... is also produced.
While discussing about coal and petroleum a teacher told his students about PCRA's (Petroleum Conservation Research Association) guidelines to save the fossil fuels while driving vehicles. Deepa was going to her school with her mother who was driving car. At the traffic signal, when the light was red, Deepa suggested her mother to switch of the engine.
After reading the above passage, answer the following questions :
(a) Fossil fuels are natural resources, then why do we need to conserve them?
(b) List any two ways of saving the fossil fuels.
(c) State two values exhibited to Deepa.
List the products of combustion of fossil fuels. What are their adverse effects on the environment?
Match the following.
| Octane rating | Diesel |
| Cetane rating | Methane |
| Simplest hydrocarbon | Petrol |
| Peat | Bown in colour |
| Lignite | First stage coal |
Petroleum was formed from organisms
Petroleum, ______ and ______ are fossil fuels.
The underlined word in the following sentence have been jumbled up. Write them in their correct form.
Umpetlore is a fossil fuel.
We read in newspapers that burning of fuels is a major cause of global warming. Explain why.
Crude oil is used as a sealant for waterproofing various surfaces.
