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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Identification of ions and gases

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Identification of ions and gases

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Paper 3Theory (Core)1 marks

Testing for anions in a laboratory setting.

Description

Anion Tests

Describe the procedure for testing for carbonate ions, halides, and sulfate ions.

  1. a

    State the test for carbonate ions (CO₃²⁻).

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 3 structured question: Identification of ions and gases

Paper 3Theory (Core)3 marks

Description

Anion Identification

Outline the steps to identify halides and sulfates in a solution.

  1. a

    Explain the procedure for testing for halides using silver nitrate.

    Aim for approximately 3 distinct marking points.

    [3]