A-LevelChemistryAtoms, molecules and stoichiometryMay/June 2015Paper 1 Q261 Mark
Use of the Data Booklet is relevant to this question. 2.40 g of propan-2-ol were mixed with excess acidified potassium dichromate(VI). The reaction mixture was then boiled under reflux for twenty minutes. The organic product was then collected by distillation. The yield of product was 75.0%. What mass of product was collected?
A1.74 g
B1.80 g
C2.22 g
D2.32 g
✓ Correct Answer
The correct answer is A. This question tests the candidate's understanding of atoms, molecules and stoichiometry within the Chemistrysyllabus. The examiner's mark scheme requires...
📋 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...
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