Most of the fuels used today are obtained from crude oil - Edexcel - GCSE Chemistry Combined Science - Question 5 - 2019 - Paper 1
Question 5
Most of the fuels used today are obtained from crude oil.
(a) Which statement about crude oil is correct?
A crude oil is a compound of different hydrocarbons
B cru... show full transcript
Worked Solution & Example Answer:Most of the fuels used today are obtained from crude oil - Edexcel - GCSE Chemistry Combined Science - Question 5 - 2019 - Paper 1
Step 1
Which statement about crude oil is correct?
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Answer
The correct statement is B: crude oil is a mixture of hydrocarbons. This highlights the complexity of crude oil composition, which contains various hydrocarbons in different proportions.
Step 2
State a use for each of these fractions.
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Answer
Kerosene is used as fuel for aircraft, jets, lamps, cooking, heaters, and fire lighters. Diesel oil is commonly used for vehicles such as cars, trains, trucks, lorries, and boats.
Step 3
Choose a property.
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A property to consider is boiling point.
Step 4
State how this property for kerosene compares with the property for diesel oil.
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Answer
Kerosene has a lower boiling point compared to diesel oil, which means that kerosene evaporates more readily than diesel oil.
