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8.2 Identification of common gases

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Question 27
H

A student is given one test tube of gas and asked to show that it contains carbon dioxide and not chlorine. Which test does this, and for which reason?

[1]
A

glowing splint, because carbon dioxide puts the splint out

B

burning splint, because chlorine puts the splint out too

C

limewater, because chlorine also turns limewater milky

D

damp litmus paper, because only chlorine bleaches it white

Markscheme

8.2 Identification of common gases Questions

  1. GCSE
  2. /Chemistry
  3. /8.2 Identification of common gases

40 exam-style questions on AQA GCSE Chemistry 8.2 Identification of common gases, covering 8.2.1 Test for hydrogen, 8.2.2 Test for oxygen, 8.2.3 Test for carbon dioxide, and 8.2.4 Test for chlorine. Each one has a worked solution and a mark scheme showing where the marks go.

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