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8.2 Identification of common gases

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Question 20
H

Hydrogen burns in the air at the open end of the test tube. Which equation represents the reaction that produces the pop?

[1]
A

H2+O2→H2O2\text{H}_2 + \text{O}_2 \rightarrow \text{H}_2\text{O}_2H2​+O2​→H2​O2​

B

2H2+O2→2H2O2\text{H}_2 + \text{O}_2 \rightarrow 2\text{H}_2\text{O}2H2​+O2​→2H2​O

C

H2+O→H2O\text{H}_2 + \text{O} \rightarrow \text{H}_2\text{O}H2​+O→H2​O

D

2H+O2→2HO2\text{H} + \text{O}_2 \rightarrow 2\text{HO}2H+O2​→2HO

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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