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WorksheetsExtraction of Metals
Total questions: 11
Worksheet time: 6mins
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.
Which element cannot be extracted from its ore by reduction with carbon?
a)
iron
b)
aluminium
c)
copper
d)
lead
5.
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
6.
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
7.
How could you extract sodium from molten sodium chloride?
a)
reduction by carbon
b)
electrolysis
c)
decomposition
d)
oxidation
8.
How would you extract iron from haematite (iron ore)?
a)
reduction with carbon
b)
electrolysis
c)
decomposition
d)
oxidation
9.
A method of extracting metals from their ores that are more reactive than carbon.
a)
carbon extraction
b)
fractional distillation
c)
electrolysis
d)
cracking
10.
How would you extract silver?
a)
Heating with coke
b)
Electrolysis
c)
The blast furnace
d)
Silver is found uncombined
11.
How would you extract potassium?
a)
Heating with carbon
b)
The blast furnace
c)
Potassium is found uncombined
d)
Electrolysis
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