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WorksheetsElectrolysis & Extraction of Aluminum
Total questions: 14
Worksheet time: 11mins
Which ion will be attracted to the positive electrode (anode)?
Al3+
O2-
H+
All of them
The negative Oxygen ions lose electrons, so they are ____?
(use OILRIG)
Oxidised
Reduced
Oxygenated
Rangled
The positive electrode is called the
anode
cathode
The negative electrode is called the
anode
cathode
What is the name of the ore that contains aluminum
Bauxite
Cryolite
Aluminum oxide
Heamatite
The positive Aluminium ions gain electrons, so they are ____?
(use OILRIG)
Oxidised
Reduced
Oxygenated
Riddled
In aluminum extraction the electrodes are made of
carbon (graphite)
aluminum and oxygen
platinum
steel
The anode has to be replaced frequently because
The oxygen reacts with the carbon anode to form carbon dioxide
Aluminum reacts with the carbon to form aluminum carbide
The anode gets impurities that impact the extraction
The anode is too hot and it will reduce their electrical conductivity
When sodium chloride solution (brine) is electrolysed, the products are:
sodium at the cathode and
chlorine at the anode
sodium at the cathode and
oxygen at the anode
hydrogen at the cathode and
oxygen at the anode
hydrogen at the cathode and
chlorine at the anode
Anions are formed by
Metals
Non-metals
