A-LevelChemistryAtoms, molecules and stoichiometryMay/June 2016Paper 1 Q41 Mark
In China, the concentration of blood glucose, C₆H₁₂O₆, is measured in mmol / l. In Pakistan, the concentration of blood glucose is measured in mg / dl. The unit l is a litre (1 dm³). The unit dl is a decilitre (0.1 dm³). A blood glucose concentration of 18.5 mmol / l indicates a health problem. What is 18.5 mmol / l converted to mg / dl?
A33.3 mg/dl
B178 mg/dl
C333 mg/dl
D3330 mg/dl
✓ Correct Answer
The correct answer is C: 333 mg/dl
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
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