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8.3 Identification of ions by chemical and spectroscopic means

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Question 15

A conservator uses a flame test to identify the metal ion in a small sample of pigment from a historical ceramic. A clean nichrome wire is dipped into the pigment, and the Bunsen burner is set to give a roaring blue flame.

Where should the tip of the wire be held?

[1]
A

At the edge of the flame

B

Just above the top of the flame

C

In the centre of the flame

D

At the base of the flame, next to the burner

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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