NEW
Font size
S
M
L
XL
WorksheetsExtraction of metals
Total questions: 10
Worksheet time: 8mins
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.
What is oxidation?
a)
loss of oxygen
b)
gain of electrons
c)
gain of hydrogen
d)
loss of electrons
6.
Which element cannot be extracted from its ore by reduction with carbon?
a)
iron
b)
aluminium
c)
copper
d)
lead
7.
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
8.
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
9.
How could you extract sodium from molten sodium chloride?
a)
reduction by carbon
b)
electrolysis
c)
decomposition
d)
oxidation
10.
How would you best extract iron from haematite (iron ore)?
a)
reduction by carbon
b)
electrolysis
c)
decomposition
d)
oxidation
Reset
