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Questions and Answers
What is the main principle used in TLC?
What is the main principle used in TLC?
- Gravity
- Adsorption (correct)
- Diffusion
- Osmosis
Which type of interactions play a key role in TLC for polar molecules?
Which type of interactions play a key role in TLC for polar molecules?
- Covalent bonding
- Hydrogen bonding
- Dipole-dipole interactions (correct)
- Ionic bonding
What determines the movement of a substance in TLC?
What determines the movement of a substance in TLC?
- Its shape
- Its interaction with the stationary phase (correct)
- Its color intensity
- Its molecular weight
What does Rf refer to in TLC?
What does Rf refer to in TLC?
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Which factor causes substances to separate on the stationary phase in TLC?
Which factor causes substances to separate on the stationary phase in TLC?
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What is represented by the Rf value in TLC?
What is represented by the Rf value in TLC?
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What is the advantage of using sulfuric acid/heat to visualize compounds in TLC?
What is the advantage of using sulfuric acid/heat to visualize compounds in TLC?
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Which step is critical in running a TLC to avoid immersion of the spotting area in the mobile phase?
Which step is critical in running a TLC to avoid immersion of the spotting area in the mobile phase?
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Why is ninhydrin reagent useful in TLC analysis?
Why is ninhydrin reagent useful in TLC analysis?
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What characterizes the UV light technique for visualizing compounds in TLC?
What characterizes the UV light technique for visualizing compounds in TLC?
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