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WorksheetsElectrolysis Quiz
Total questions: 20
Worksheet time: 10mins
What is electrolysis
Separating a compound into elements using electricity
Make a compound from elements
What is the positive electrode called?
Nanode
Cathode
Anode
Electrode
What is the negative electrode called?
Electrode
Nanode
Anode
Cathode
What is the charge on metal ions?
Positive
No charge
Negative
What is the charge on non-metal ions?
Positive
No charge
Negative
What state does a substance need to be in to carry out electrolysis?
Solid
Liquid
Gas
Any state
Why can electrolysis only be carried out if a substance is liquid?
because the ions are fixed
because the ions are free to move to the electrodes
because the ions can escape into the atmosphere
If electrolysis is carried out on Zinc Bromide, what are the products?
Lead and Chlorine
Copper and Oxygen
Tin and Fluorine
Zinc and Bromine
What are the products if electrolysis is carried out on copper chloride?
Zinc and Bromine
Copper and Chlorine
Aluminium and Oxygen
Sodium and Fluorine
When carrying out the electrolysis of aluminium oxide, why is cryolite added?
To decrease the melting point of aluminium oxide
To increase the melting point of aluminium oxide
To increase the boiling point of aluminium oxide
To decrease the boiling point of aluminium oxide
During the electrolysis of aluminium oxide, why do the carbon anodes ware away?
The carbon reacts with the aluminium
The carbon reacts with oxygen to form carbon dioxide
The carbon reacts with cryolite
The carbon anode dissolves
What is the picture showing?
Neutralisation
Displacement
Fractional Distillation
Electrolysis
Other than melting, how can an ionic compound be made into a liquid?
Dissolving
Evaporating
Boiling
Melting
When sodium chloride is dissolved in water, what is produced at the negative cathode?
Sodium
Chlorine
Sodium Hydroxide
Hydrogen
When sodium chloride is dissolve in water, what is produced at the positive anode?
Sodium
Chlorine
Sodium Hydroxide
Hydrogen
What is the chlorine produced used to for?
Margarine
Soap
Bleach
Petrol
Sodium ions (Na+) and Hydrogen ions (H+) both attract to the negative cathode, why is hydrogen produced?
The most reactive element is always formed
The least reactive element is always formed
It is random each time
It is alphabetical
If a solution of copper chloride is electrolysed, which metal is produced at the cathode?
Sodium
Aluminium
Hydrogen
Copper
Using electricity to separate a molten ionic compound into elements is called....
Electrolysis
Neutralisation
Chromatography
Reduction
What process is used to extract metals that are more reactive than carbon?
Distillation
Displacement
Combustion
Electrolysis
