Question
which would have the lowest Rf value: biphenyl, benzil, and resorcinol?
Answers
GPT 3.5
The compound with the lowest Rf value would be the one that interacts the most with the stationary phase (the silica gel or paper) and moves less with the mobile phase (the solvent). The higher the polarity of a compound, the more it will interact with the stationary phase and have a lower Rf value.
Out of the three compounds mentioned, resorcinol is the most polar due to the presence of hydroxyl groups (-OH) on its structure. Therefore, resorcinol would have the lowest Rf value among biphenyl, benzil, and resorcinol.
Out of the three compounds mentioned, resorcinol is the most polar due to the presence of hydroxyl groups (-OH) on its structure. Therefore, resorcinol would have the lowest Rf value among biphenyl, benzil, and resorcinol.
which would have the second lowest of those three?
GPT 3.5
Among biphenyl, benzil, and resorcinol, biphenyl would have the second lowest Rf value.
Biphenyl is non-polar and has only hydrocarbon groups in its structure. Therefore, it would have less interaction with the stationary phase compared to the more polar resorcinol. However, it would have slightly more interaction with the stationary phase compared to benzil, which contains a carbonyl group (C=O), making it slightly more polar than biphenyl.
Biphenyl is non-polar and has only hydrocarbon groups in its structure. Therefore, it would have less interaction with the stationary phase compared to the more polar resorcinol. However, it would have slightly more interaction with the stationary phase compared to benzil, which contains a carbonyl group (C=O), making it slightly more polar than biphenyl.