Worksheet: Uses of Electrolysis
In this worksheet, we will practice describing industrial conditions and applications for the electrolysis of molten salts and salt solutions.
Which of the following would be the best choice of starting material for the production of a large quantity of oxygen by electrolysis?
- ACarbon dioxide
- BMetal sulfates
- CMetal oxides
- DMetal carbonates
- EMetal hydroxides
Which molten salt would produce sodium metal and chlorine gas when electrolyzed?
Which molten salt would produce magnesium metal and bromine gas when electrolyzed?
Aluminum is commonly extracted by electrolysis of aluminum oxide . Before it can be electrolyzed, the aluminum oxide must be molten. However, aluminum oxide has a melting point of over , which is very expensive to maintain. What is added to lower the melting point of the aluminum oxide before electrolysis?
- EIron oxide
What is the product at the cathode when copper(II) chloride is electrolyzed in aqueous solution?
- BCopper hydroxide
- DCopper chloride
What is the product at the cathode when sodium chloride is electrolyzed in aqueous solution?
- CSodium hydroxide
- DSodium chloride