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Extraction Of Metals And Reduction (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Extraction Of Metals And Reduction' from the broader topic Chemical Changes. The test is geared towards the AQA exam board style syllabus.
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In displacement reactions used in extraction, what determines whether metal A will displace metal B from solution?
Which of these is an advantage of extracting metals by electrolysis compared with reduction by carbon?
In the electrolysis of molten metal halides to extract a metal, why must the product metal be kept separate from the halogen gas produced at the anode?
Which statement best describes a displacement reaction used to extract a metal from a solution of a less reactive metal?
Why is carbon used to extract iron from iron(III) oxide in a blast furnace?
In the extraction of copper from copper(II) oxide using carbon, which species is oxidised?
Which metal is usually extracted by electrolysis of a molten halide rather than by reduction with carbon?
Which statement about the thermite reaction (iron(III) oxide + aluminium) is correct in the context of metal extraction?
Limestone (calcium carbonate) is added to the blast furnace. What is its main purpose?
Why are many metals extracted from their ores in a molten state during electrolysis rather than from aqueous solution?
Which of these metals would most likely be found native (occurring uncombined) and so be extractable without reduction?