A mixture of three compounds was chromatographed using a silica gel column with diethyl ether/hexanes (10:90) as the eluting solvent. Fractions were collected and TLC analysis of each fraction was performed, with the results shown here: A C 1 2 3 4 5 6 7 8 Mixture before separation Which fractions should be combined to give pure samples ofA, B and C?

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A mixture of three compounds was chromatographed using a silica gel column with diethyl
ether/hexanes (10:90) as the eluting solvent. Fractions were collected and TLC analysis of
each fraction was performed, with the results shown here:
A
3
4
7
8
Mixture before
separation
Which fractions should be combined to give pure samples of A, B and C?
Transcribed Image Text:A mixture of three compounds was chromatographed using a silica gel column with diethyl ether/hexanes (10:90) as the eluting solvent. Fractions were collected and TLC analysis of each fraction was performed, with the results shown here: A 3 4 7 8 Mixture before separation Which fractions should be combined to give pure samples of A, B and C?
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