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8.3 Identification of ions by chemical and spectroscopic means

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Question 3

A building surveyor dissolves a sample of salt from a damp cellar wall in water. The solution is known to contain one of these ions: bromide, carbonate, chloride or sulfate.

The surveyor adds dilute hydrochloric acid, then barium chloride solution. A white precipitate forms.

Which ion was present in the salt?

[1]
A

Sulfate ions

B

Bromide ions

C

Carbonate ions

D

Chloride ions

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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