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Explain and describe various methods for separating and purifying substances, including the use of a suitable solvent, filtration, crystallisation, simple distillation, and fractional distillation.

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Cambridge IGCSE ChemistryExperimental techniques and chemical analysisCore content

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Quick explanation

Explain and describe various methods for separating and purifying substances, including the use of a suitable solvent, filtration, crystallisation, simple distillation, and fractional distillation

  • This point belongs to Separation and purification, especially Separation and purification outcomes.
  • You need to be able to explain and describe various methods for separating and purifying substances, including the use of a suitable solvent, filtration, crystallisation, simple distillation, and fractional distillation.
  • The key ideas to know are Describe and Explain.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DescribeExplain

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This objective helps connect Separation and purification outcomes to exam-style questions, flashcards, and revision notes for Separation and purification.

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Paper 3 structured question: Separation and purification

Paper 3Theory (Core)1 marks

Description

Separation Techniques

Different methods can be used to separate and purify substances in chemistry. These include filtration, crystallisation, simple distillation, and fractional distillation.

  1. a

    State one method of separating a solid from a liquid.

    Aim for approximately 1 distinct marking point.

    [1]
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