Oxidation, reduction and the extraction of metals (AQA GCSE Chemistry Combined Science): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is oxidation?
What is oxidation?
Gaining oxygen atoms
What is reduction?
What is reduction?
Losing oxygen atoms
What is formed when metals react with oxygen?
What is formed when metals react with oxygen?
Metal oxides
What happens to metals when they react with air?
What happens to metals when they react with air?
They gain oxygen atoms
How do alkali metals react with air?
How do alkali metals react with air?
Very quickly
What are the products when magnesium burns in air?
What are the products when magnesium burns in air?
Magnesium oxide
When a metal oxide forms a metal, what process has occurred?
When a metal oxide forms a metal, what process has occurred?
Reduction
How are most metals found in nature?
How are most metals found in nature?
As metal oxides or compounds
How are very reactive metals like aluminium extracted?
How are very reactive metals like aluminium extracted?
Electrolysis
How can iron be extracted from its ore?
How can iron be extracted from its ore?
Heating with carbon
Which metals are sometimes found naturally as pure elements?
Which metals are sometimes found naturally as pure elements?
Copper, silver and gold
Why is extracting iron cheaper than extracting sodium?
Why is extracting iron cheaper than extracting sodium?
Carbon method cheaper than electrolysis