WorksheetsElectrolysis
Total questions: 16
Worksheet time: 7mins
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.
Which statement correctly describes the 2 electrodes?
a)
The anode is negative and the cathode is positive
b)
The anode and cathode are both positive
c)
The anode is positive and the cathode is negative
d)
The anode and cathode are both negative.
4.
What is the name given to the solution that is being electrolysed?
a)
Salt solution
b)
Electric solution
c)
Mineral solution
d)
Electrolyte
5.
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
6.
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
7.
Positive ions (cations) will move towards the cathode (-) where they will discharge by....
a)
Breaking apart
b)
Losing electrons
c)
Clumping together.
d)
Gaining electrons
8.
When NaCl solution is electrolysed what has forms at the anode?
a)
Hydrogen
b)
Oxygen
c)
Chlorine
d)
Sodium
9.
What does the Cathode (-) do to ions?
a)
Give electrons to the Positive ions to turn them back into atoms
b)
Take electrons from the positive ions?
c)
Turn ions back into atoms by removing electrons
d)
Turn atoms into ions by adding electrons
10.
___________ electrode is an inert electrode.
a)
Copper
b)
Iron
c)
Carbon
d)
Zinc
11.
Ionic compounds do not conduct electricity when they are solid because,
a)
their electrons are not free to move
b)
their ions are free to move
c)
their ions are not free to move
d)
their electrons are free to move
12.
Oxidation is loss of electron. Where does oxidation take place during electrolysis.
a)
At anode
b)
In the electrolyte
c)
At the circuit
d)
At cathode
13.
What is the name of the positive electrode?
a)
cathode
b)
anode
14.
What is the name of the negative electrode?
a)
cathode
b)
anode
15.
The negatively charged ions migrate toward the ________.
a)
anode
b)
cathode
16.
The positively charged ions migrate toward the ________.
a)
anode
b)
cathode
100 %
