Stogs GCSE Interleaving Electrolysis M
Authored by Stephanie Difford
Chemistry
8th - 10th Grade
Used 34+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In electrolysis, the electrolyte must be a...
solid.
liquid.
gas.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is cryolite used during the production of aluminium from its oxide by electrolysis?
It lowers the melting point of aluminium oxide.
It increases the melting point of aluminium.
It increases the temperature.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In electrolysis, at the negative electrode, positively charged ions...
lose electrons.
gain electrons.
dissolve.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Look at the equation: X+ + e- → X. Is this oxidation or reduction?
Oxidation
Reduction
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student carried out electrolysis on copper sulphate (CuSO4) solution. Which ions are attracted to the anode?
Copper ions and hydrogen ions.
Oxygen ions and sulphur ions.
Hydrogen ions and hydroxide ions.
Sulphate ions and hydroxide ions.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is formed at the anode from the electrolysis of molten lead bromide?
Lead
Oxygen
Hydrogen
Bromine
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is formed at the cathode from the electrolysis of molten zinc chloride?
Zinc
Chlorine
Hydrogen
Oxygen
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