测试:GRE Subject Test: Chemistry

Chromatography involves the separation of a mixture by allowing a mobile phase to travel along a stationary phase. In thin layer chromatography (TLC), a liquid solution is able to travel along a stationary plate. The distance that a particular compound travels compared to another compound can be determined by comparing the Rffactors for each compound. The Rffactor is determined by dividing the compound's distance by the total distance of the solvent.

1.

Which of the following compounds would have the smallest Rffactor in a standard thin-layer chromatography (TLC) experiment?

Propane

Glucose

Hexane

Butanol

1/3 questions

0%

Access results and powerful study features!

Take 15 seconds to create an account.
Start now!Create your free account and get access to features like:
  • Full length diagnostic tests
  • 邀请你的朋友
  • Access hundreds of practice tests
  • Monitor your progress over time
  • Manage your tests and results
  • Monitor the progress of your class & students
By clicking Create Account you agree that you are at least 13 years old and you agree to the Varsity Tutors LLCTerms of UseandPrivacy Policy.
Learning Tools by Varsity Tutors