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A-LevelChemistryChemical periodicity9701/12 · Oct/Nov 2023 · Q201 Mark

Four mixtures are added to four separate 50 cm³ samples of water and stirred. Which mixture results in a solution with the highest pH?

A1.0 g of aluminium oxide and 1.0 g of aluminium chloride
B1.0 g of magnesium oxide and 1.0 g of magnesium chloride
C1.0 g of phosphorus oxide and 1.0 g of phosphorus chloride
D1.0 g of silicon dioxide and 1.0 g of silicon chloride

✓ Correct answer

B: 1.0 g of magnesium oxide and 1.0 g of magnesium chloride

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About this question

Topic
Chemical periodicity, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Oct/Nov 2023 Paper 1 Variant 2, question 20.

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