A-LevelChemistryHalogen derivativesMay/June 2013Paper 1 Q241 Mark

Compound Y can be hydrolysed by warm aqueous silver nitrate to form a precipitate that is soluble in dilute aqueous ammonia. Compound Y can undergo an elimination reaction to form an alkene. What could be the skeletal formula of compound Y? [Figure 24.1]

Q: What topic does this question test?

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

Askeletal formula of 2-bromopropane

Bskeletal formula of 2-iodopropane

Cskeletal formula of 2-chloropropane

Dskeletal formula of 1-chloropropane

✓ Correct Answer

The correct answer is C: skeletal formula of 2-chloropropane

📋 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 Halogen derivatives in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Chemistry May/June 2013 examination, Paper 1 Variant 2.

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