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A-LevelChemistryGroup 29701/12 · Oct/Nov 2024 · 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

C: The solubility of magnesium sulfate in water is greater than the solubility of barium sulfate in water.

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About this question

Topic
Group 2, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Oct/Nov 2024 Paper 1 Variant 2, question 21.

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