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Cambridge IGCSE Combined Science practice

What is the main purpose of paper chromatography?

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Show answerChromatography revisionRevise the key idea

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MCQ

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cambridge_mcq

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Topic

Chromatography

Exam-style question

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What is the main purpose of paper chromatography?.

  1. A.To measure the pH of substances
  2. B.To separate mixtures of soluble colored substances
  3. C.To determine the boiling point of liquids
  4. D.To identify the density of solids

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Paper 3 structured question: Chromatography

Paper 3Theory (Core)3 marks

Description

Ink Chromatography

A student performed paper chromatography on a black ink mixture. They spotted the ink on chromatography paper and placed it in water as the solvent. After some time, they observed several distinct colored spots on the paper.

  1. a

    Explain the process of paper chromatography as demonstrated in the experiment.

    Aim for approximately 3 distinct marking points.

    [3]