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Question
Process of separation of different constituents from petroleum is called ______.
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Solution
Process of separation of different constituents from petroleum is called refining.
Explanation:
Petroleum is a dark, oily liquid. It has an unpleasant odour. It is a mixture of various constituents such as petroleum gas, petrol, diesel, lubricating oil, paraffin wax, etc. The process of separating the various constituents or fractions of petroleum is known as refining. It is carried out in a petroleum refinery.
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After reading the above passage, answer the following questions :
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| Cetane rating | Methane |
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| Peat | Bown in colour |
| Lignite | First stage coal |
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Petroleum is considered a harmful source of energy.
