What topic does this question test?

This question tests Hydroxy compounds in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

Which exam paper is this question from?

This question appeared in the Cambridge A-Level Chemistry Oct/Nov 2018 examination, Paper 1 Variant 2 (9701_w18_qp_12.pdf).

A-LevelChemistryHydroxy compoundsOct/Nov 2018Paper 1 Q261 Mark

The reactions of four organic compounds are given in the table. Which compound could be propan-2-ol?

Areagent/observations: when oxidised with Cr2O7²⁻/H⁺, gives an organic product with a boiling point greater than the original compound: no; when added to ethanoic acid, and a few drops of conc. H2SO4, gives a sweet-smelling compound: no

Breagent/observations: when oxidised with Cr2O7²⁻/H⁺, gives an organic product with a boiling point greater than the original compound: no; when added to ethanoic acid, and a few drops of conc. H2SO4, gives a sweet-smelling compound: yes

Creagent/observations: when oxidised with Cr2O7²⁻/H⁺, gives an organic product with a boiling point greater than the original compound: yes; when added to ethanoic acid, and a few drops of conc. H2SO4, gives a sweet-smelling compound: no

Dreagent/observations: when oxidised with Cr2O7²⁻/H⁺, gives an organic product with a boiling point greater than the original compound: yes; when added to ethanoic acid, and a few drops of conc. H2SO4, gives a sweet-smelling compound: yes

✓ Correct Answer

The correct answer is B: reagent/observations: when oxidised with Cr2O7²⁻/H⁺, gives an organic product with a boiling point greater than the original compound: no; when added to ethanoic acid, and a few drops of conc. H2SO4, gives a sweet-smelling compound: yes

📋 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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The reactions of four organic compounds are given in the table. Which compound could be propan-2-ol?

✓ Correct Answer

📋 Examiner Report & Trap Analysis

🎯 Mark Scheme Breakdown

Unlock the Examiner's Analysis

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