A-LevelChemistryCarboxylic acids and derivativesOct/Nov 2015Paper 1 Q301 Mark

The structure of aspartame, which is used as an artificial sweetener, is shown. [Figure of aspartame structure with bonds 1 and 2 labelled] If aspartame is warmed in aqueous alkali, which of bonds 1 and 2 will be broken?

Q: What is the correct answer to this A-Level Chemistry question?

The correct answer is A: both bond 1 and bond 2.

Q: What topic does this question test?

This question tests Carboxylic acids and derivatives in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

Aboth bond 1 and bond 2

Bbond 1 only

Cbond 2 only

Dneither bond 1 nor bond 2

✓ Correct Answer

The correct answer is A: both bond 1 and bond 2

📋 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...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Chemistry Question

Topic

This multiple-choice question tests Carboxylic acids and derivatives in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Chemistry Oct/Nov 2015 examination, Paper 1 Variant 2.

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