Extraction of Metals & Reduction (AQA GCSE Chemistry Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
What are ores?
What are ores?
Naturally occurring metal compounds
In what form are most metals found in nature?
In what form are most metals found in nature?
As oxides
What does reduction mean in metal extraction?
What does reduction mean in metal extraction?
Removing oxygen from metal oxides
Which metals can be extracted by reduction with carbon?
Which metals can be extracted by reduction with carbon?
Metals less reactive than carbon
What is the name of the process of heating metal oxides with carbon?
What is the name of the process of heating metal oxides with carbon?
Smelting
Which metals must be extracted using electrolysis?
Which metals must be extracted using electrolysis?
More reactive metals like aluminium
Why is electrolysis more expensive than carbon reduction?
Why is electrolysis more expensive than carbon reduction?
It is energy-intensive
Which extraction method is more cost-effective?
Which extraction method is more cost-effective?
Reduction using carbon
What does electrolysis involve?
What does electrolysis involve?
Passing current through molten oxides
Why do native metals like gold require no chemical reduction?
Why do native metals like gold require no chemical reduction?
Found in pure form in nature