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Coal and Petroleum — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceCoal and Petroleum2 Marks
Question
What do you mean by refining of petroleum?
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Answer

Petroleum is a dark oily liquid and have unpleasant smell. It is a mixture of various constituents. The process of separating various constituents like petroleum gas, petrol, diesel, lubricating oil, paraffin wax, etc. as fractions of petroleum is known as refining.

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