C1.3.2 Alloys
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Using Exam pro items to support successful
outcomes
•
C1.3.2
• Learners will be able to test their progress against learning
outcomes using questions fro past AQA GCSE examinations
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Foundation Tier C1 June 12, 3
1.
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1 continued
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Mark scheme- Foundation
Q
Answer
1 (a)
Aluminium has a low density
Aluminium is resistant to
corrosion
1 (b)(i)
(an alloy) is a mixture of metals
Accept (an alloy) can be a metal
mixed with another metal or iron
mixed with carbon/a non-metal
1
1 (b)(ii)
Pure metals are soft
Or
alloys are hard
Allow weak
Allow strong/keep their shape
Ignore rust/corrosion
1
Total
4
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Extra Information
Mark
1
1
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Higher Tier, C1 Jan 12, 4
1.
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1 continued
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Mark scheme- Higher
Q
Answer
Extra Information
Mark
1 (a)(i)
Reduction
Accept redox/smelting
1
1 (a)(ii)
3 4 3
1 (b)(i)
55
Ignore other units
1
1 (b)(ii)
water
Accept sodium hydroxide
Accept correct formulae H2O or
NaOH
1
1 (b)(iii)
Any one from
Save energy/fuel for transporting the
ore
(old) quarries nearby for waste/red
mud
Accept less (cost of) transport
allow transport quickly
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1
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Mark scheme- Higher continued
Q
Answer
Extra Information
1c
Environmental
Any one from
• Less mining/quarrying (of bauxite)
• Less landfill space needed/used
• Less use of fossil fuels/energy
• Less carbon dioxide produced
Ethical or Social
Any one from
• Saves resources
• Creates (local) employment
• More people aware of the need to
recycle
1
Allow loss of habitat/less
qualified noise pollution
Allow less red mud/waste
1
Allow using resources more
than once
If answers reversed and both
correct award one mark
Allow less qualifies noise
pollution if not given in
environmental
Total
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Mark
7