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

Sign up to Oracle Prep to view the full model answer with examiner insights.

A-LevelChemistryChemical periodicityOct/Nov 2018Paper 2 Q217 Marks

The table gives some data for elements in the third period and some of their compounds. element Na Mg Al Si P S type of bonding covalent covalent formula of oxide P4O10 SO2 formula of chloride NaCl MgCl2 SCl2

Q: What topic does this question test?

This question tests Chemical periodicity in A-Level Chemistry (syllabus code 9701). It is worth 17 marks.

📋 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.

🔒

Unlock the Examiner's Analysis

Join thousands of Cambridge students already using Oracle Prep

About This A-Level Chemistry Question

Topic

This structured question tests Chemical periodicity in A-Level Chemistry (syllabus code 9701). It is worth 17 marks.

Source

This question appeared in the Cambridge A-Level Chemistry Oct/Nov 2018 examination, Paper 2 Variant 2.

Practice on Oracle Prep

Oracle Prep provides AI-powered practice for all Cambridge O-Level and A-Level subjects. Our platform includes topic predictions with 87.7% accuracy, AI essay grading, and a comprehensive question bank spanning 25 years of past papers across 29 subjects.