Cambridge IGCSE Chemistry practice

Paper 3 structured question: Identification of ions and gases

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Paper

Marks

Topic

Identification of ions and gases

Exam-style question

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Paper 3Theory (Core)3 marks

Identifying anions in a solution.

Description

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

a
Explain the procedure for testing for halides using silver nitrate.
Your answer
Aim for approximately 3 distinct marking points.
[3]

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Paper 3Theory (Core)1 marks

Description

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

a
State the test for carbonate ions (CO₃²⁻).
Your answer
Aim for approximately 1 distinct marking point.
[1]