A-LevelChemistryCarboxylic acids and derivativesFeb/Mar 2019Paper 1 Q291 Mark
1 mole of each of the following four compounds is reacted separately with: • an excess of sodium • an excess of sodium carbonate. Which compound produces the same volume of gas with each of the two reagents?
Aprimary alcohol structure (propan-1-ol).
Bcarboxylic acid structure (propanoic acid).
Cphenol structure.
Dtertiary alcohol structure (2-methylpropan-2-ol).
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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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