A hexane B EtOAc/Hexane 1:20 C EtOAc/Hexane 1:10 D both hexane and EtOAc/Hexane

Question

A hexane
                                      B EtOAc/Hexane 1:20
                                      C EtOAc/Hexane 1:10
                                      D both hexane and EtOAc/Hexane                                        1:20
                                      E both EtOAc/Hexane 1:10 and                                        EtOAc/Hexane 1:20 mixture of two compounds was spotted on three TLC plates (A-C). The plates were developed using three different eluent systems: Hexane, EtOAc/Hexane 1:20, and EtOAc/Hexane 1:10 (the listed order of eluents does not correspond to the order of TLC plates shown). Which eluent system is the most suitable to perform preparative separation of the two compounds? hexane EtOAc/Hexane 1:20 EtOAc/Hexane 1:10 both hexane and EtOAc/Hexane 1:20 both EtOAc/Hexane 1:10 and EtOAc/Hexane 1:20

Explanation / Answer

E both EtOAc/Hexane 1:10 and EtOAc/Hexane 1:20

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