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O LevelChemistryCambridgeRevision Notes12. Experimental Techniques & Chemical Analysis12.5 Identification of Ions & GasesIdentification of Gases

Identification of Gases (Cambridge O Level Chemistry)

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Alexandra Brennan

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Identification of Gases

  • Several tests for anions and cations produce gases which then need to be tested
  • The table below indicates the tests for the gases included in the syllabus

12-3-3--testing-gases

Examiner Tip

It is easy to confuse the tests for hydrogen and oxygen. Try to remember that a ligHted splint has a H for Hydrogen, while a glOwing splint has an O for Oxygen.

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    Alexandra Brennan

    Author: Alexandra Brennan

    Expertise: Chemistry

    Alex studied Biochemistry at Newcastle University before embarking upon a career in teaching. With nearly 10 years of teaching experience, Alex has had several roles including Chemistry/Science Teacher, Head of Science and Examiner for AQA and Edexcel. Alex’s passion for creating engaging content that enables students to succeed in exams drove her to pursue a career outside of the classroom at SME.