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WorksheetsKS4 Methods of Extraction
Total questions: 14
Worksheet time: 10mins
Name
Class
Date
1.
What is an ore?
a)
a solid metal
b)
a rock cantaining a metal combined with other elements
c)
an element
d)
an object used to row a boat
2.
Which of these elements is unlikely to be found native?
a)
gold
b)
platinum
c)
aluminium
d)
silver
3.
What is the removal of oxygen from a substance called?
a)
reduction
b)
extraction
c)
electrolysis
d)
oxidation
4.
What is the addition of oxygen to a substance called?
a)
decomposition
b)
reduction
c)
oxidation
d)
extraction
5.
Which element cannot be extracted from its ore by reduction with carbon?
a)
iron
b)
aluminium
c)
copper
d)
lead
6.
Which series is used to predict the reactions of metals with carbon and other elements?
a)
reactionary series
b)
reaction series
c)
redox series
d)
reactivity series
7.
What is the name of the process that uses electricity to separate the elements in a compound?
a)
reduction
b)
electrolysis
c)
extraction
d)
mining
8.
How would you best extract iron from haematite (iron ore)?
a)
reduction by carbon
b)
electrolysis
c)
decomposition
d)
oxidation
9.
Many metals are extracted from their ores by heating them with carbon in huge furnaces. Which metal(s) cannot be extracted using this method?
a)
Aluminum
b)
Calcium
c)
Zinc
d)
Copper
10.
Which statement is correct about extraction of iron from its ore?
a)
Iron is more difficult to extract than copper
b)
Iron is the easiest metal to extract
c)
Iron cannot be extracted from its ore
11.
A method of extracting metals from their ores that are more reactive than carbon.
a)
carbon extraction
b)
fractional distillation
c)
electrolysis
d)
cracking
12.
How would you extract Silver?
a)
Heating with coke
b)
Electrolysis
c)
The blast furnace
d)
Silver is found uncombined
13.
What method would be used in order to extract potassium?
a)
Heating with Carbon
b)
The blast furnace
c)
Potassium is found uncombined
d)
Electrolysis
14.
Which of these metals requires the most energy to be separated from its ore?
a)
copper
b)
lead
c)
potassium
d)
aluminium
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