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Alice Lim
Paper 2
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bloom-apply×correct-observation×incorrect-structure×
Observation is correct: brick-red Cu2O precipitate. However, the organic product drawn is not correct/clear for the oxidation product of glucose (should be the corresponding carboxylate/aldonic acid). −1: incorrect product
1(a)(i)
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Chemistry script1/3
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Assignment Report
O-Level Pure Chemistry·4E1·28 students·March 15, 2026
Score by Question
88Q1
74Q2
62Q3
91Q4
43Q5
70Q6
Score distribution
median 68%3895
mean 67.2%
Pass Rate
82%
Submissions
28 / 28
The cohort handled recall and structured calculation well, but lost the most marks on application questions needing multi-step reasoning. Q5 and Q10 are the clearest re-teaching priorities before the next assessment.
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Q1(a)(i) · Snippet note
good-exampleneeds-substantiationexperimental-chemistryionic-bondingrecallanalysis
Observation is correct: brick-red Cu₂O precipitate. However, the organic product drawn is not the correct oxidation product of glucose.
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