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O-LevelChemistryAcids, Bases & Salts5070/11 · Oct/Nov 2012 · Q181 Mark

What is a property of the hydroxide, OH¯, ion?

AIt combines with hydrogen to form water.
BIt is present in water.
CIt readily breaks down into hydrogen ions and oxide ions.
DIt travels to the cathode in electrolysis of an aqueous solution.

✓ Correct answer

B: It is present in water.

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About this question

Topic
Acids, Bases & Salts, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source
O-Level Chemistry, Oct/Nov 2012 Paper 1 Variant 1, question 18.

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