Gasoline (petrol)
3 marks · EasyName the main use of gasoline (petrol).
State two different reasons why gasoline is suitable for this use.
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(a) Used as fuel in cars.
(b) Any two reasons: (i) Burns easily in a car engine (ii) Provides high energy (iii) Readily available (iv) Mixture of hydrocarbons with suitable boiling points
Common mistakes: Naming other uses not related to gasoline
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Marking points
B1 (a) · 1 mark · Fuel in cars identified as main use of gasoline.
B2 (b) · 1 mark · One correct property or reason for gasoline being suitable (e.g., burns easily, provides high energy, mixture of hydrocarbons with similar boiling points).
B3 (b) · 1 mark · A second correct property or reason.
Worked solution
a) Gasoline is mainly used as a fuel in cars. b) Any two: (i) Gasoline burns easily in car engines; (ii) Provides high amounts of energy; (iii) It is a mixture of hydrocarbons with similar boiling points, which makes it suitable for engines.