A-LevelChemistryGroup 2May/June 2012Paper 1 Q171 Mark
What can be seen when a piece of magnesium ribbon is placed in cold water?
Avigorous effervescence occurs.
BBubbles of gas form slowly on the magnesium.
CThe magnesium floats on the surface of the water and reacts quickly.
DThe magnesium glows and a white solid is produced.
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of group 2 within the Chemistrysyllabus. The examiner's mark scheme requires...
📋 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...
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