Exam (elaborations)
June 2023 Edexcel IGCSE Chemistry MS 4ch1 / 1c
June 2023 Edexcel IGCSE Chemistry MS 4ch1 / 1c
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Mark Scheme (Results)Summer 2023
Pearson Edexcel International GCSE
In Chemistry (4CH1) Paper 1C
, Question
Answer Notes Marks
number
1 (a) (i) fractional distillation 1
(ii) chromatography 1
(iii) simple distillation ACCEPT distillation 1
(b) M1 A mixture of copper(II) oxide and copper(II) 4
sulfate can be separated by first dissolving the
copper(II) sulfate in distilled water.
M2 The copper(II) oxide is then removed by filtering ACCEPT filtration
M3 Some of the water from the copper(II) sulfate ACCEPT evaporation
solution is then removed by evaporating
ACCEPT simple
distillation
M4 A pure sample of hydrated copper(II) sulfate is ACCEPT crystallising
then obtained by crystallisation
Total 7
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