O- Chromatography =) Flashcards
1
Q
A sample of cyclohexene has been contamintaed with cyclohexanol. The cyclohexene can be separated from the cyclohexanol by column chromatography.
Silica gel is used as the stationary phase and hexane as the mobile phase.
Explain why cyclohexene has a shorter retention time than cyclohexanol. (2)
A
- cyclohexene - ↓ polar than cyclohexanol
- ↑ affinity for mobile phase
