Worksheetsextraction of metals
Total questions: 11
Worksheet time: 8mins
Name
Class
Date
1.
what is an ore?
a)
a metal
b)
a non metal
c)
a rock which contains metals
d)
a harmful gas
2.
Which of these elements is unlikely to be found native?
a)
gold
b)
platinum
c)
aluminium
d)
silver
3.
What is the addition of oxygen to a substance called?
a)
decomposition
b)
reduction
c)
oxidation
d)
extraction
4.
How could you extract sodium from molten sodium chloride?
a)
reduction by carbon
b)
electrolysis
c)
decomposition
d)
oxidation
5.
How would you best extract iron from haematite (iron ore)?
a)
reduction by carbon
b)
electrolysis
c)
decomposition
d)
oxidation
6.
Which of these elements is unlikely to be found native?
a)
gold
b)
platinum
c)
aluminium
d)
silver
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.
Which reaction is used to keep the furnace hot?
a)
CO2 + C -> 2CO
b)
C + O2 -> CO2
c)
Fe2O3 + 3C -> 2Fe + 3CO
d)
C + O2 -> CO2
10.
Iron is made by burning its ore, hematite. Hematite contains silica. What reacts with this impurity to remove it?
a)
Carbon
b)
Carbon Dioxide
c)
Silicon dioxide
d)
Calcium Oxide
11.
Iron is made by burning its ore, hematite. Hematite contains silica. What reacts with this impurity to remove it?
a)
Carbon
b)
Carbon Dioxide
c)
Silicon dioxide
d)
Calcium Oxide
100 %
