A-LevelChemistryGroup 2Oct/Nov 2018Paper 1 Q151 Mark
In which row are all statements comparing magnesium and barium correct?
Afourth ionisation energy: magnesium: higher, barium: lower; reaction with water: magnesium: faster, barium: slower
Bfourth ionisation energy: magnesium: higher, barium: lower; reaction with water: magnesium: slower, barium: faster
Cfourth ionisation energy: magnesium: lower, barium: higher; reaction with water: magnesium: faster, barium: slower
Dfourth ionisation energy: magnesium: lower, barium: higher; reaction with water: magnesium: slower, barium: faster
✓ 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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