A-LevelChemistryCarboxylic acids and derivativesFeb/Mar 2018Paper 1 Q281 Mark
Ethanedioic acid has the formula HO₂CCO₂H. What is the formula of aluminium ethanedioate?
AAlC₂O₄
BAl(C₂O₄)₃
CAl₂C₂O₄
DAl₂(C₂O₄)₃
✓ Correct Answer
The correct answer is D. This question tests the candidate's understanding of carboxylic acids and derivatives within the Chemistrysyllabus. The examiner's mark scheme requires...
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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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