A-LevelChemistryCarboxylic acids and derivativesMay/June 2019Paper 1 Q291 Mark
One molecule of compound R is shown. [Figure 29.1] What is the name of compound R and how does its boiling point compare with that of butanoic acid?
Aname of R: methyl propanoate, boiling point of R: higher than butanoic acid
Bname of R: methyl propanoate, boiling point of R: lower than butanoic acid
Cname of R: propyl methanoate, boiling point of R: higher than butanoic acid
Dname of R: propyl methanoate, boiling point of R: lower than butanoic acid
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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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