Alkanes And Fuel
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Fractional distillation is used to separate crude oil into various fractions. Which property of the different fractions enable them to be separated?
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They have different densitites
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They have different boiling points.
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They have different solubilities in crude oil.
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They have different viscosities.
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A quiz to assess your understanding.
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- 2.
Methane is used as a fuel. What property is essential for this use?
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It burns exothermically
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It is odourless.
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It is a gas.
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It has a low boiling point.
Correct Answer
A. It burns exothermically -
- 3.
Which statement about 'fossil fuel' is not true?
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They all contain carbon.
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They are renewable.
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They produce pollutants when burnt.
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They may cause acid rain.
Correct Answer
A. They are renewable. -
- 4.
Which of the following is not made from crude oil?
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Aircraft fuel
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Diesel oil
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Furniture polish
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Margarine
Correct Answer
A. Margarine -
- 5.
What is the main constituent of natural gas?
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Ethene
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Hydrogen
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Propane
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Methane
Correct Answer
A. Methane -
- 6.
Which fraction contains the largest molecules?
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Kerosene
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Petrol
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Diesel
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Bitumen
Correct Answer
A. Bitumen -
- 7.
Which of the following fraction is used as chemical feedstock?
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Lubricating oil
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Bitumen
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Naphtha
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Kerosene
Correct Answer
A. Naphtha -
- 8.
Study the reaction scheme below. What is process I and II?
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I is substitution; II is addition
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I is cracking; II is fractional distillation
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I is fractional distillation; II is cracking.
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I is decomposition; II is substitution
Correct Answer
A. I is fractional distillation; II is cracking. -
- 9.
During cracking, a hexane molecule was being split into smaller molecules. Hexane ----> butane + substance XWhat is substance X?
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Ethane
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Ethene
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Ethanol
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Ether
Correct Answer
A. Ethene -
- 10.
Why are large alkane molecules cracked to form smaller molecules?
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Alkanes with large molecules are not useful.
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Small alkane molecules can be polymerized.
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Crude oil does not contain small alkane molecules.
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To meet the demand for small alkane molecules.
Correct Answer
A. To meet the demand for small alkane molecules. -
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Jul 03, 2019Quiz Edited by
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May 24, 2010Quiz Created by
Pehyk
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