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Complete the table showing the tests, observations and conclusions for tests (a) to (d).
Chemistry 5070 · O Level · Identification of ions and gases
Identification of ions and gases — practice question
A student carries out a sequence of tests on a mixture of ionic compounds in aqueous solution.
Complete the table shown.
Name any gases produced and describe the tests used to identify them.
Worked solution & mark scheme
This 11-mark question has a full step-by-step worked solution and mark scheme. One marking point: “A green precipitate that is insoluble in excess is produced by aqueous ammonia → Cr^{3}⁺ and Fe^{2}⁺” …
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