A-LevelChemistryGroup 2May/June 2023Paper 1 Q201 Mark

The table compares calcium with barium and calcium carbonate with barium carbonate. Which row is correct?

Q: What topic does this question test?

This question tests Group 2 in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

Abarium is more reactive barium carbonate is more stable

Bbarium is more reactive calcium carbonate is more stable

Ccalcium is more reactive barium carbonate is more stable

Dcalcium is more reactive calcium carbonate is more stable

✓ Correct Answer

The correct answer is A: barium is more reactive barium carbonate is more stable

📋 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 Group 2 in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Chemistry May/June 2023 examination, Paper 1 Variant 2.

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