Q.

Name the process used to eliminate impurities present in crude oil?

A. distillation
B. filtration
C. sedimentation
D. coagulation
Answer» A. distillation
Explanation: the impurities present in the crude oil are eliminated by the process of refining oil by distillation. it is based on the principle that boiling points of various hydrocarbons increase with an increase in molecular weight and when distilled, the crude oil is separated into gasoline, kerosene, fuel oil or reduced crude oil.
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