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4.2 Identifying the products of chemical reactions

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Question 2

A ceramics laboratory tests three separate glaze samples by flame tests. Sample P gives a red flame, sample Q gives a lilac flame and sample R gives a green flame. The possible ions are lithium, potassium and copper(II).

Which option identifies the ions in samples P, Q and R?

[1]
A

Sample P: copper(II); sample Q: potassium; sample R: lithium

B

Sample P: lithium; sample Q: potassium; sample R: copper(II)

C

Sample P: lithium; sample Q: copper(II); sample R: potassium

D

Sample P: potassium; sample Q: lithium; sample R: copper(II)

Markscheme

4.2 Identifying the products of chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /4.2 Identifying the products of chemical reactions

107 exam-style questions on OCR GCSE Chemistry 4.2 Identifying the products of chemical reactions, covering 4.2.1 Tests to identify gases, 4.2.2 Tests for aqueous ions and flame tests, and 4.2.3 Instrumental methods of analysis. Each one has a worked solution and a mark scheme showing where the marks go.

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