A-LevelChemistryGroup 2Oct/Nov 2024Paper 1 Q211 Mark
Which statement comparing magnesium and barium, or their compounds, is correct?
AMagnesium reacts with dilute hydrochloric acid more rapidly than barium does.
BOne mole of magnesium carbonate gives off a greater amount of gas when it reacts with an excess of dilute hydrochloric acid than one mole of barium carbonate does.
CThe solubility of magnesium sulfate in water is greater than the solubility of barium sulfate in water.
DMagnesium carbonate undergoes thermal decomposition less readily than barium carbonate does.
✓ 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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