Extraction of Metals & Reduction (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
ShowHide
Practise the questions
12 questions from this quiz
What are ores?
What are ores?
Naturally occurring metal compounds
How are most metals found in nature?
How are most metals found in nature?
As oxides
What does reduction do during metal extraction?
What does reduction do during metal extraction?
Removes 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 process of heating metal oxides with carbon called?
What is the process of heating metal oxides with carbon called?
Smelting
Which metal is given as an example of extraction by carbon reduction?
Which metal is given as an example of extraction by carbon reduction?
Iron
In iron extraction from with carbon, what gas is produced?
In iron extraction from with carbon, what gas is produced?
Carbon dioxide
Which metals must be extracted using electrolysis?
Which metals must be extracted using electrolysis?
More reactive metals than carbon
Which metal is given as an example that requires electrolysis for extraction?
Which metal is given as an example that requires electrolysis for extraction?
Aluminium
Why is electrolysis more expensive than carbon reduction?
Why is electrolysis more expensive than carbon reduction?
It is energy-intensive
Which metals are found in their pure form in nature as native metals?
Which metals are found in their pure form in nature as native metals?
Gold and platinum
Why do native metals require no chemical reduction?
Why do native metals require no chemical reduction?
Found in pure form in nature