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3.2 Methods of separating and purifying substances

3.2 Methods of separating and purifying substances

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Question 43

State why deionised water, rather than tap water, must be used to dilute or dissolve chemical samples before carrying out qualitative analysis.

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3.2 Methods of separating and purifying substances Questions

  1. GCSE
  2. /Chemistry
  3. /3.2 Methods of separating and purifying substances

107 exam-style questions on Edexcel GCSE Chemistry 3.2 Methods of separating and purifying substances, covering 3.2.1 Pure substances and mixtures, 3.2.2 Techniques for separating mixtures, 3.2.3 Paper chromatography and Rf values, and 3.2.4 Making water potable. Each one has a worked solution and a mark scheme showing where the marks go.

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