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Tutor HuntTest QuestionsChemistry QuestionsYear 10 Chemistry Questions

 

Chromatography (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Chromatography' from the broader topic Chemical Analysis. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

Gas chromatography (GC) separates volatile compounds. Which statement is true about GC?
How should the start line be positioned relative to the solvent in paper chromatography?
A lab technician ran a TLC plate and noticed the solvent front was allowed to travel all the way to the top edge. Why is this a mistake?
What is the Rf value if a dye spot moves 3.6 cm from the start line and the solvent front moves 9.0 cm?
In paper chromatography, which combination gives the most polar stationary phase and a polar mobile phase?
Which statement about Rf values is correct?
Which factor would NOT normally improve resolution between two close spots in chromatography?
Which of the following is an advantage of thin-layer chromatography (TLC) over paper chromatography?
Which statement best explains why Rf values are reproducible only under identical conditions?
What is the main difference between adsorption chromatography and partition chromatography?
If two components have Rf values 0.30 and 0.33 on one solvent system, what is the simplest practical step to try to separate them better?