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Record the observations in the table. Write ‘no reaction’ in any suitable space.
Chemistry 5070 · O Level · Identification of ions and gases
Identification of ions and gases — practice question
A student is given three aqueous solutions: aqueous zinc sulfate, aqueous copper(II) sulfate and aqueous calcium nitrate. The student carries out tests on the three aqueous samples by adding each reagent shown in the table. Record the observations in the table. Write ‘no reaction’ where appropriate.
Worked solution & mark scheme
This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Zinc sulfate + sodium hydroxide: a white precipitate forms” …
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