O-LevelChemistryAcids, Bases & Salts5070/11 · May/June 2013 · Q321 Mark

An aqueous solution of a compound X reacts with • aqueous zinc chloride to form a white precipitate which dissolves when X is in excess, • aluminium sulfate solution to form a white precipitate which is insoluble when X is in excess. What is the identity of X?

Aammonia

Bbarium chloride

Csilver nitrate

Dsodium hydroxide

✓ Correct answer

A: ammonia

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Topic: Acids, Bases & Salts, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2013 Paper 1 Variant 1, question 32.

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