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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 10

The melting points of three different samples of compound W are shown in the table below.

SampleMelting point in °C
D134–138
E141
F137–139

State whether each of these samples, D, E, and F, is pure or impure and justify your answers using the information in the table.

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Markscheme

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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