A-LevelChemistryGroup 2May/June 2024Paper 1 Q181 Mark
W is a solid that reacts with water to produce an alkaline solution. The addition of two drops of dilute H2SO4 to this alkaline solution produces a white precipitate. What could be the identity of solid W?
Amagnesium hydroxide
Bmagnesium oxide
Cbarium oxide
Dphosphorus oxide
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of group 2 within the Chemistrysyllabus. The examiner's mark scheme requires...
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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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