Oil Refining - IGCSE paper 1

s94 Question 36
The diagram represents the fractional distillation of crude oil.
At which level is bitumen collected?
 


Ans: D 
Bitumen, being the heaviest, with the highest boiling point, appears as the bottom-most fraction.
 

w94 Question 37
The diagram shows the fractional distillation of crude oil (petroleum).
Which of the following is a use of fraction X?
 
 
 
 
 
 
A.  aircraft fuel
B.  fuel for cooking stoves
C.  road making
D.  waxes 
 

Ans: C

 

w95 Question 37
From which level, in the fractionating column, is a substance used for making roads obtained?




Ans: D
Bitumen, being the heaviest, with the highest boiling point, appears as the bottom-most fraction
 
 


s96 Question 37
The diagram shows how crude oil (petroleum) is separated,
Which of the following is not a fraction produced by this process?
A   diesel fuel
B   paraffin
C   petrol
D   poly(ethene)
 
Ans: D


 
 

w 97 Question37
The diagram shows the refining of crude oil.
Which of the following is a use for Y?
A   fuel for aircraft
B   fuel for lorries
C   surfacing roads
D   making waxes
 
Ans: A
 

w97 Question 37
The laboratory apparatus shown is used to separate mixtures.
For which mixture is the apparatus most suitable?
A   air
B   coal
C   natural gas
D   petroleum


 
Ans: D
 



s98 Question 37
Apparatus used to separate petroleum into four fractions is shown.
Which fraction contains the smallest hydrocarbon molecules?
 

  
Fraction
Boiling point range/ oC
a
up to 70
b
70 to 120
c
120 to 170
d
over 70

Ans: A
 the smallest hydrocarbon molecules have the lowest boiling point,  which would appear at the top of the fractionating column
  


 

w98 Question 37

The diagram shows the separation of crude oil into fractions.

 
 What could X, Y and Z represent?

A    diesel,  lubricating oil,   paraffin
B    lubricating oil,   diesel,  paraffin
C    lubricating oil,   paraffin,  diesel
D    paraffin,   diesel,   lubricating oil

Ans: A
 

s99 Question 37
The diagram shows the fractional distillation of crude oil(petroleum).

 
 
Which of the following is a use of fraction X?
A  aircraft fuel
B  fuel for cooking stoves
C  road making
D  waxes
 
Ans: C

s00 Question 37
The diagrams show different liquids.
Which liquid is not made directly from petroleum?
Ans: C
 


w02 Question 37
A student sets up the apparatus shown to separate petroleum into its different liquid parts.
Why does this method of separation work?
The liquids in petroleum have different
A  boiling points.
B  densities,
C  functional groups,
D  melting points.
 
Ans : A
 

w03 Question 37
Which fraction produced by the distillation of petroleum is used as aircraft fuel?
A   bitumen
B   diesel
C   paraffin
D   petrol

Ans: C
 





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