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10.1 Qualitative analysis: tests for ions

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Question 7
F

An unknown gives a yellow flame and a white precipitate with acidified silver nitrate. Which ions are present?

[1]
A

Na+\mathrm{Na^+}Na+ and Cl−\mathrm{Cl^-}Cl−

B

K+\mathrm{K^+}K+ and I−\mathrm{I^-}I−

C

Cu2+\mathrm{Cu^{2+}}Cu2+ and SO42−\mathrm{SO_4^{2-}}SO42−​

D

Li+\mathrm{Li^+}Li+ and Br−\mathrm{Br^-}Br−

Markscheme

10.1 Qualitative analysis: tests for ions Questions

  1. GCSE
  2. /Chemistry
  3. /10.1 Qualitative analysis: tests for ions

35 exam-style questions on Edexcel GCSE Chemistry 10.1 Qualitative analysis: tests for ions, covering 10.1.1 Principles of ion tests and flame tests, 10.1.2 Tests for cations and for ammonia, 10.1.3 Tests for anions, 10.1.4 Identification of ions in unknown salts, and 10.1.5 Instrumental methods of analysis. Each one has a worked solution and a mark scheme showing where the marks go.

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