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8.3 Identification of ions by chemical and spectroscopic means

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Question 32

A solution is known to contain sodium ions and may also contain potassium ions. A flame test gives a yellow flame, and no lilac colour can be seen. A student concludes that the solution does not contain potassium ions.

Evaluate the student's conclusion.

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Markscheme

8.3 Identification of ions by chemical and spectroscopic means Questions

  1. GCSE
  2. /Chemistry
  3. /8.3 Identification of ions by chemical and spectroscopic means

93 exam-style questions on AQA GCSE Chemistry 8.3 Identification of ions by chemical and spectroscopic means, covering 8.3.1 Flame tests, 8.3.2 Metal hydroxides, 8.3.3 Carbonates, 8.3.4 Halides, 8.3.5 Sulfates, 8.3.6 Instrumental methods, and 8.3.7 Flame emission spectroscopy. Each one has a worked solution and a mark scheme showing where the marks go.

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