Separating Crude Oils 2.0 / 5 based on 1 rating ? ChemistryCrude oil, cracking and hydrocarbonsGCSEAQA Created by: Emily1Created on: 20-06-13 21:35 What do we call the compounds that contain only carbon and hydrogen atoms? Hydrocarbons 1 of 7 Which of the following describes the top of an oil fractionating column? The top of an oil fractionating column is colder than the bottom of the column. 2 of 7 What happens to a liquid during its separation from a mixture by distillation? Evaporating followed by condensing 3 of 7 In comparison with large hydrocarbons, how would you describe small hydrocarbons? In comparison with large hydrocarbons, small hydrocarbons are more volatile. 4 of 7 What is the general formula for alkanes? CnH2n+2 5 of 7 How can alkanes be described? Alkanes can be described as saturated. 6 of 7 The most viscous hydrocarbons are likely to leave the fractionating column at: The bottom 7 of 7
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