medium · MCAT chem-phys
A lab technician uses thin-layer chromatography (TLC) to separate two compounds. Compound A is polar, and Compound B is nonpolar.
Using a silica gel plate (polar stationary phase) and a nonpolar solvent (mobile phase), which compound will travel further?
- Compound A, because polar compounds move fastest in nonpolar solvent.
- Compound B, because it interacts less with the stationary phase.
- Both move the same distance via capillary action alone.
- Neither compound will move at all, given that the solvent used is nonpolar.
Sign up free to see the explanation and track your rank →
More MCAT chem-phys practice
- Which term describes the final state where no net heat flow occurs?
- What term describes the molecule with internal symmetry despite having chiral centers?
- An infrared (IR) spectrum of an unknown organic compound sho… — Which functional group is
- What is the molecular mechanism by which the catalyst achieves this increase?
- Which mechanism is occurring?
- According to the Critical Analysis and Reasoning Skills (CARS) methodology, which test sho
- Which reactant is the limiting reagent?
- How many moles of NH_3 are theoretically produced?