A-LevelChemistryStates of matterFeb/Mar 2021Paper 1 Q61 Mark

A solution contains 0.25 g of sulfur dioxide in 1.00 dm³ of water. Which volume of sulfur dioxide, measured at 50 °C and a pressure of 1 × 10⁵ Pa, must be added to 1.00 dm³ of water to produce this solution?

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

The correct answer is D: 105 cm³.

Q: What topic does this question test?

This question tests States of matter in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

A0.0162 cm³

B0.105 cm³

C16.2 cm³

D105 cm³

✓ Correct Answer

The correct answer is D: 105 cm³

📋 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 States of matter in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Chemistry Feb/Mar 2021 examination, Paper 1 Variant 2.

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