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Learning objective

Propose appropriate methods for separation and purification based on the characteristics of the substances provided

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE Combined ScienceExperimental techniques and chemical analysisCore content

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Quick explanation

Propose appropriate methods for separation and purification based on the characteristics of the substances provided

  • This point belongs to Separation and purification, especially Separation and purification outcomes.
  • You need to be able to propose appropriate methods for separation and purification based on the characteristics of the substances provided.
  • The key ideas to know are Suggest and Determine.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

SuggestDetermine

Why it matters

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)2 marks

Description

Separation of Salt and Sand

You have a mixture of salt and sand that needs to be separated.

  1. a

    Describe the method you would use to separate the salt from the sand.

    Aim for approximately 2 distinct marking points.

    [2]
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