IGCSE Aluminium Extraction / Uses of Metals

Quiz
•
Chemistry
•
9th - 12th Grade
•
Hard
Cheng Yoke Wah
Used 101+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
In the extraction of aluminium, what compound of aluminium is used for the electrolyte?
aluminium oxide
aluminium sulfate
aluminium nitrate
aluminium sulfide
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To which electrode do aluminium ions move during the electrolysis?
anode
cathode
3.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
In aluminium extraction, the melting point of the electrolyte is lowered by adding .......
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which statements about the manufacture of aluminium by electrolysis is correct? Select all the correct options.
Aluminium is extracted from its ore haematite.
Aluminium ions gain electrons to form aluminium.
The carbon anodes need to be replaced.
Carbon dioxide is formed in the process.
Limestone is added to remove impurities.
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
What substances must be present for rusting to occur?
Select all correct options.
Heat
Enzyme
Oxygen
Water
UV light
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Which metals can provide sacrificial protection against rusting? Select all correct options.
iron
steel
zinc
magnesium
copper
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Iron from the blast furnace is impure. To remove these impurities, .....
add additives to molten iron.
filter the molten iron.
blow oxygen into molten iron.
add coke to molten iron.
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