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Edexcel IGCSE Chemistry 2.44 Gas Tests Questions

Practise choosing gas tests and observations for hydrogen, oxygen, carbon dioxide, chlorine and related products in reactions.

Syllabus
First assessment 2019
Course
Chemistry 4CH1

Exam points

  • distinguish hydrogen and oxygen using a lighted splint pop or a glowing splint relighting
  • test carbon dioxide with limewater and report the colourless-to-milky change
  • link chlorine to bleaching of damp litmus paper when identifying the gas

Edexcel IGCSE Chemistry 2.44 Gas Tests Questions question 1

[Maximum number: 1]

A student uses this apparatus to investigate the decomposition of hydrogen peroxide solution.

Figure for Question Edexcel IGCSE Chemistry 2.44 Gas Tests Questions question 1 — Edexcel IGCSE Chemistry

This is the equation for the reaction.

2H2O2→2H2O+O22 \mathrm{H}_{2} \mathrm{O}_{2} \rightarrow 2 \mathrm{H}_{2} \mathrm{O}+\mathrm{O}_{2}

Give the test for oxygen.

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