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WorksheetsElectrolysis
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
What is electrolysis?
a)
breaking down of a compound using a current
b)
making a compound using a current
2.
What kind of Electrical Current does Electroysis require?
a)
Direct
b)
Indirect
c)
Anternative
d)
A alternating
3.
What is the name given to the solution that is being electrolysed?
a)
Salt solution
b)
Electric solution
c)
Mineral solution
d)
Electrolyte
4.
Explain why the electrolyte has to be a liquid.
a)
So the ions can move
b)
So the electrons can move
c)
So that it doesn't get too hot
d)
So the fish are ok
5.
What happens at the positive electrode?
a)
Positive non-metal ions are attracted
b)
Positive metal ions are attracted
c)
Negative non-metal ions are attracted
d)
Negative metal ions are attracted
6.
When NaCl solution is electrolysed what has forms at the anode?
a)
Hydrogen
b)
Oxygen
c)
Chlorine
d)
Sodium
7.
What is the name of the positive electrode?
a)
cathode
b)
anode
8.
What is the name of the negative electrode?
a)
cathode
b)
anode
9.
The negatively charged ions are attracted to the ________.
a)
anode
b)
cathode
10.
The diagram shows the electrolysis of lead(II) bromide using inert electrodes. Why does the bulb only light up when the lead(II) bromide is melted?
a)
Bromine atoms in lead(II) bromide are converted to ions when it is melted
b)
Electrons flow through the lead(II) bromide when it is melted
c)
The ions in lead(II) bromide are mobile charge carriers in the molten state.
d)
There are no ions in solid lead(II) bromide
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