CIE iGCSE Co-Ordinated Science C11.3 Fuels Exam Style Questions Paper 1
Question
Which property allows petroleum to be separated by fractional distillation?
A. Boiling point
B. Colour
C. Density
D. Melting point
▶️Answer/Explanation
Answer: A
Explanation: Petroleum is separated by fractional distillation based on the different boiling points of its components. Each fraction condenses at a different temperature.
Question
What is the main constituent of natural gas?
A. ethane
B. ethanol
C. ethene
D. methane
▶️Answer/Explanation
Answer: D
Explanation: The main constituent of natural gas is methane (CH₄), which makes up the majority of its composition.
Question
Butane is a hydrocarbon.
What is the word equation for the complete combustion of butane?
A butane + oxygen carbon + water
B butane + oxygen carbon dioxide + carbon monoxide + water
C butane + oxygen carbon dioxide + water
D butane + oxygen carbon monoxide + water
▶️Answer/Explanation
Ans :C
Question
Which fractions obtained by the fractional distillation of petroleum are used as fuels?
1 bitumen
2 diesel oil
3 gasoline
4 refinery gas
(A) 1 and 2 only
(B) 3 and 4 only
(C) 1, 2 and 3
(D) 2, 3 and 4
▶️Answer/Explanation
Ans: D