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A-LevelChemistryGroup 29701/12 · Feb/Mar 2018 · Q151 Mark

A solution contains both Mg²⁺(aq) and Sr²⁺(aq) at the same concentration. The solution is divided into two equal portions. Aqueous sodium hydroxide is added dropwise to one portion. Dilute sulfuric acid is added dropwise to the other portion. Which row is correct?

Amagnesium hydroxide magnesium sulfate
Bmagnesium hydroxide strontium sulfate
Cstrontium hydroxide magnesium sulfate
Dstrontium hydroxide strontium sulfate

✓ Correct answer

B: magnesium hydroxide strontium sulfate

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About this question

Topic
Group 2, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Feb/Mar 2018 Paper 1 Variant 2, question 15.

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