Chemistry 5070 · O Level · Identification of ions and gases

Identification of ions and gases — practice question

A student is supplied with aqueous copper(II) sulfate, aqueous aluminium sulfate and an aqueous solution labelled X.
(a)[7]

Fill in the table with the observations you would expect.

(b)[2]

Identify X from the information provided.

Worked solution & mark scheme

This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “precipitate that is blue \times2” …

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