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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 12
H

A dye remains on the baseline during chromatography. Which explanation is most likely?

[1]
A

It is more soluble in the solvent than the other dyes

B

It is not soluble in the solvent used

C

It has a lower boiling point than the solvent

D

It has an RfR_fRf​ value close to 1

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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