05e Electrolysis
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SPM Form 4 Science Chapter 5
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Question 1 of 6
1. Question
1 points
The figure shows the process of electroplating a ring. Which of the following is the suitable electrolyte for this process?
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The correct answer is “Silver nitrate “.
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Question 2 of 6
2. Question
1 points
The figure shows the apparatus setup to study the process of purification of copper.
Which of the following is correct about the choice of anode and cathode?Anode
Cathode
A.
Impure copper plate
Pure Copper plate
B.
Pure Copper plate
Impure copper plate
C.
Carbon
Pure copper plate
D.
Impure copper plate
Carbon
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Incorrect
The correct answer is “A”.
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Question 3 of 6
3. Question
1 pointsDiagram below shows an apparatus set-up used by a science teacher to electroplate his iron key.
What is metal N?
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The correct answer is “Nickel”.
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Question 4 of 6
4. Question
1 pointsDiagram below shows how electrolysis is used to purify copper.
Predict what happens at the cathode.
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The correct answer is “Copper is deposited”.
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Question 5 of 6
5. Question
1 pointsWhich metal can be extracted from its ore by heating it with carbon?
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The correct answer is “Tin”.
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Question 6 of 6
6. Question
1 pointsDiagram below shows the purification process of metal.
What will happen to the anode?
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Incorrect
The correct answer is “Becomes thinner”.