1
Q
What are the four advantages of TLC of paper chromatography?
A
Runs faster
Smaller amounts of mixtures can be separated
The spots spread out less
The plates are more robust than paper
2
Q
What is the stationary phase?
A
Silica gel
A Level Chemistry AQA
flashcards
Decks in class (32)
# Cards
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Transition metals26
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Aliphatic reactions22
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Shapes of molecules and ions8
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Structures in the periodic table4
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Group 2 metals9
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Group 7 halogens19
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Nomenclature16
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Isomers12
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Alkanes27
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Types of formulae3
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Fractional distillation of crude oil1
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Halogenoalkanes10
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Nucleophilic substitution reactions halagenoalkanes5
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Elimination reactions in halogenoalkanes4
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Alkenes4
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Addition polymers19
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Alcohols11
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Tests for aldehydes & ketones9
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Test tube reactions11
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The infrared spectrometer1
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Optical activity4
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Glycerol5
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Acylation - nucleophiles5
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Uses of using ethanoic anhydride over ethanoyl chloride as an acylating agent1
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Burning arenes1
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Nitration2
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The economic importance of amines2
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Condensation polymers5
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Reasons for using TMS2
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Solvents for proton NMR1
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TLC2
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Column chromatography2
