Alternative Methods of Extracting Metals (AQA GCSE Chemistry Combined Science): Quizzes
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12 questions from this quiz
What does phytomining use to extract copper from low-grade ores?
What does phytomining use to extract copper from low-grade ores?
Plants
What happens to plants after harvesting in phytomining?
What happens to plants after harvesting in phytomining?
They are burnt to produce ash
What does the ash contain after burning plants in phytomining?
What does the ash contain after burning plants in phytomining?
Higher concentration of copper compounds
What does bioleaching use to extract copper ions from low-grade ores?
What does bioleaching use to extract copper ions from low-grade ores?
Bacteria
What is the solution produced by bacteria in bioleaching called?
What is the solution produced by bacteria in bioleaching called?
Leachate
Why is copper used in electronics?
Why is copper used in electronics?
Excellent electrical conductivity
Which alloys are produced using copper?
Which alloys are produced using copper?
Brass and bronze
What is a disadvantage of phytomining?
What is a disadvantage of phytomining?
It is a slow process
What is an environmental advantage of bioleaching?
What is an environmental advantage of bioleaching?
Produces no carbon emissions
Which method requires less land clearance?
Which method requires less land clearance?
Bioleaching
In electrolysis, where are copper ions attracted to?
In electrolysis, where are copper ions attracted to?
Negative electrode
Why can iron displace copper from copper compounds?
Why can iron displace copper from copper compounds?
Iron is more reactive than copper