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8.3 Identification of ions by chemical and spectroscopic means

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Question 24
H

A solution contains lithium ions and sodium ions. Why does flame emission spectroscopy identify both ions when a flame test identifies only one?

[1]
A

The spectroscope heats the sample to a much higher temperature

B

The spectroscope removes the sodium ions before the test starts

C

The spectrum shows a separate set of lines for each metal ion

D

The spectroscope only detects ions that are present in small amounts

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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