Fractional distillation of crude oil

Last updated: 08/02/2020

AQA A-Level Chemistry Alkanes Fractional distillation of crude oil

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Question 1 of 20

1. Question
What is the definition of fractional distillation?
- The process of separating crude oil
- The process of separating a liquid
- The constant boiling of a liquid
- The evaporation and distillation of crude oil
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Question 2 of 20

2. Question
What is the definition of a fraction?
- Alkanes with similar boiling points
- A type of oil
- A fossil fuel
- A section of crude oil
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Question 3 of 20

3. Question
What factor of alkane molecules is most important within the process of fractional distillation?
- Boiling point
- Length of alkane
- Standard states
- Melting point
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Question 4 of 20

4. Question
What is the definition of a saturated hydrocarbon?
- Hydrocarbons that contain only single bonds
- Hydrocarbons with no oxygen atoms
- Hydrocarbons with no hydrogen atoms
- Hydrocarbons that contain double bonds
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Question 5 of 20

5. Question
What is the definition of an unsaturated hydrocarbon?
- Hydrocarbons that contain double bonds
- Hydrocarbons with no hydrogen atoms
- Hydrocarbons with no oxygen atoms
- Hydrocarbons that contain only single bonds
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Question 6 of 20

6. Question
Describe the boiling points of the hydrocarbons with the shortest carbon chain.
- Longer carbon chain hydrocarbons have lower boiling points
- Longer carbon chain hydrocarbons have higher boiling points
- Boiling point will depend on the number of carbon-carbon double bonds
- Boiling point will remain the same for both longer and shorter hydrocarbons
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Question 7 of 20

7. Question
Describe the boiling points of the hydrocarbons with the longest carbon chain.
- Longer carbon chain hydrocarbons have higher boiling points
- Longer carbon chain hydrocarbons have lower boiling points
- Boiling point will depend on the number of carbon-carbon double bonds
- Boiling point will remain the same for both longer and shorter hydrocarbons
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Question 8 of 20

8. Question
What is the name of the device crude oil is fractionated off during fractional distillation?
- Fractionating tower
- Fraction boiler
- Fractioning burner
- Fractionating tube
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Question 9 of 20

9. Question
At roughly what temperature should crude oil be heated to during fractional distillation?
- 350°C
- 200°C
- 50°C
- -350°C
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Question 10 of 20

10. Question
What happens to the temperature of the vapourised crude oil as it goes up the fractionating tower?
- Temperature will decrease
- Temperature will increase
- Temperature stays the same
- Temperature change will depend on the type of crude oil
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Question 11 of 20

11. Question
How are different lengthed hydrocarbons collected during fractional distillation?
- By condensing
- By evaporation
- By distilling
- By refluxing
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Question 12 of 20

12. Question
In what state are the hydrocarbons left in after fractional distillation?
- Liquid
- Solid
- Gaseous
- Aqueous
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Question 13 of 20

13. Question
What is crude oil made up from?
- Fossil fuels
- Wood
- Olive oil
- Flowers
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Question 14 of 20

14. Question
How is crude oil formed?
- Through fossils from dead plants and animals
- Through combustion of fuel
- Through the burning of plants
- Using renewable energy resources
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Question 15 of 20

15. Question
Which process is used to separate crude oil?
- Fractional distillation
- Refluxing
- Chromatography
- Recrystallisation
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Question 16 of 20

16. Question
How is crude oil separated?
- Separating into groups with similar boiling points
- By constantly heating and reheating
- Using reflux
- Using cracking
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Question 17 of 20

17. Question
What causes acid rain?
- Sulfur dioxide
- Carbon monoxide
- Carbon dioxide
- Soot particles
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Question 18 of 20

18. Question
Which of the following are a fossil fuel?
- Oil
- Flowers
- Wood
- Plants
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Question 19 of 20

19. Question
Which of the following are a fossil fuel?
- Coal
- Metal ones
- Sand
- Energy
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Question 20 of 20

20. Question
Which of the following are a fossil fuel?
- Natural gas
- Wood
- Soil
- Metal
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