| Quiz | Using electrolysis to extract metals |
|---|---|
| Name | |
| Result | PASSED |
| Score | 18 / 19 (94.7%) |
| Passing score | 15.2 |
| Quiz took | 8 min 18 sec |
| Quiz finished at | 2024-05-17 18:48:30 |
Metals usually exist in the ground as
Electrolysis must be used to extract metals from ores if
Electrolysis is expensive and requires metals ores to be
Bauxite is
In the electrolysis of bauxite, aluminium ions form with a
In the electrolysis of bauxite, oxygen ions form with a
In the electrolysis of bauxite, aluminium ions are attracted to
In the electrolysis of bauxite, oxygen ions are attracted to
In the electrolysis of bauxite, the aluminium oxide is mixed with cryolite to
Non-metals are attracted to
Non metals are attracted to
In electrolysis of aqueous solutions, hydrogen gas will be produced at the cathode if the metal ions form an elemental metal that is
In electrolysis of aqueous solutions, a solid layer of pure metal will be produced at the cathode if the metal ions form an elemental metal that is
In electrolysis of aqueous solutions, OH- ions will be discharged and oxygen will be formed at the anode, if
In electrolysis of aqueous solutions, molecules of chlorine, bromine or iodine will be formed at the anode, if
In electrolysis of copper (II) sulphate solution, _______ is produced at the cathode
In electrolysis of copper (II) sulphate solution, _______ are produced at the anode
In electrolysis of sodium chloride solution, _______ is produced at the cathode
In electrolysis of sodium chloride solution, _______ is produced at the anode