MCAT Organic Chemistry Question — TLC
- Feb 18, 2017
- MCAT Question of the Day
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In the mixture above, HCOOH and CH3OH hydrogen bond with the siloxane matrix. Therefore, B and D will have the lowest Rf values. The oxygen atom in CH2O makes formaldehyde slightly polar allowing for intermolecular interactions between the gel plates. Benzene is the most nonpolar compound of the choices and therefore travels the farthest from the starting position along with the hexane solvent. Thus, A is the correct answer.
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