O-LevelChemistryAcids, Bases & Salts5070/12 · May/June 2015 · Q201 Mark

A colourless solution reacts with magnesium to form a salt and hydrogen gas. How is this solution acting?

Aas a base

Bas a reducing agent

Cas a solvent

Das an acid

✓ Correct answer

D: as an acid

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Topic: Acids, Bases & Salts, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2015 Paper 1 Variant 2, question 20.

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