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Questions and Answers
How is planar chromatography different from column chromatography?
How is planar chromatography different from column chromatography?
- Planar chromatography uses a flat surface as the stationary phase, while column chromatography uses a narrow column. (correct)
- Planar chromatography uses gravity to pass the mobile phase through the stationary phase, while column chromatography uses capillary action.
- Planar chromatography uses a gas as the mobile phase, while column chromatography uses a liquid.
- Planar chromatography separates components based on their size, while column chromatography separates based on density.
What is the basis of separation in chromatography?
What is the basis of separation in chromatography?
- Relative attraction of components to the stationary phase and the mobile phase (correct)
- Relative density of the components in the mixture
- Relative size of the components in the mixture
- Relative concentration of the components in the mixture
How are chromatographic techniques often named?
How are chromatographic techniques often named?
- By listing the type of stationary phase followed by the type of mobile phase
- By listing the type of detector followed by the type of sample
- By listing the type of sample followed by the type of solvent
- By listing the type of mobile phase followed by the type of stationary phase (correct)
What determines the migration rate of sample components in chromatographic separation?
What determines the migration rate of sample components in chromatographic separation?
What is the function of the mobile phase in chromatography?
What is the function of the mobile phase in chromatography?