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8.3 Identification of ions by chemical and spectroscopic means

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Question 27
H

A compound gives a lilac flame in a flame test. When dilute hydrochloric acid is added, a gas is given off that turns limewater cloudy. Which compound is it?

[1]
A

Potassium carbonate

B

Potassium sulfate

C

Calcium carbonate

D

Sodium carbonate

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

40 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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