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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

What is the main difference between adsorption chromatography and partition chromatography?
What is the main reason a chemist would choose paper chromatography rather than TLC for a classroom activity?
How should the start line be positioned relative to the solvent in paper chromatography?
Why does changing the solvent polarity change Rf values 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?
Which of the following is an advantage of thin-layer chromatography (TLC) over paper chromatography?
Which statement about Rf values is correct?
A student used pencil to draw the start line and the solvent washed the ink away. What mistake was made?
In paper chromatography which factor most directly affects how far a component travels up the paper?
Why is it important to use a small concentrated spot (small volume) when applying sample to the start line?
A student records the following: distance moved by dye = 2.4 cm; distance moved by solvent = 6.0 cm. Which multiple-choice answer is the correct Rf and correct explanation?