Extraction of Metals & Reduction (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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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 is the purpose of reduction in metal extraction?
What is the purpose of reduction in metal extraction?
To remove oxygen from metal oxides
What determines which extraction method is used for a metal?
What determines which extraction method is used for a metal?
The metal's position in Reactivity Series
Which metals can be extracted by reduction with carbon?
Which metals can be extracted by reduction with carbon?
Metals less reactive than carbon
In the equation , what does carbon produce with oxygen?
In the equation , what does carbon produce with oxygen?
Carbon dioxide
Which metals require electrolysis for extraction?
Which metals require electrolysis for extraction?
Metals more reactive than carbon
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
Why do gold and platinum require no chemical reduction?
Why do gold and platinum require no chemical reduction?
They are found as pure native metals