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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 15
H

A student wants both pure solvent and dissolved solid from a solution. Which plan is best?

[1]
A

Evaporate the solution until only dry solid remains

B

Filter the solution, then evaporate the filtrate

C

Crystallise the solution, then filter off the crystals

D

Distil to collect the solvent, then crystallise the residue

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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