A-LevelChemistryCarboxylic acids and derivativesFeb/Mar 2019Paper 1 Q401 Mark
Carboxylic acids can be prepared from alcohols, nitriles or esters. Which statements are correct? 1 Both primary and secondary alcohols can be oxidised to carboxylic acids. 2 Carboxylic acids can be made from nitriles by hydrolysis. 3 Ethyl propanoate gives propanoic acid when reacted with hydrochloric acid.
A1, 2 and 3 are correct
B1 and 2 only are correct
C2 and 3 only are correct
D1 only is correct
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The correct answer is C. 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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