Thin Layer Chromatography (TLC)
Interactive Video
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Chemistry, Science, Engineering, Physics
•
11th Grade - University
•
Hard
Wayground Content
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7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary basis for separation in thin layer chromatography (TLC)?
Polarity differences
Solubility differences
Molecular weight differences
Boiling point differences
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of silica gel in TLC?
It dissolves the compounds
It serves as the stationary phase
It provides a non-polar surface
It acts as the mobile phase
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to keep the pencil line above the solvent in TLC?
To keep the plate dry
To allow the solvent to evaporate
To ensure the sample is submerged
To prevent the sample from dissolving
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you visualize the spots on a TLC plate if they are not visible?
By using UV light or staining agents
By adding more solvent
By using a magnifying glass
By applying heat
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the RF value in TLC represent?
The ratio of distances traveled by the substance and solvent
The distance traveled by the solvent
The speed of solvent evaporation
The thickness of the silica gel layer
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can TLC be used to monitor the progress of a chemical reaction?
By comparing RF values of reactants and products
By checking the pH level
By observing the color change
By measuring the temperature change
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an ideal outcome when selecting a solvent system for column chromatography using TLC?
Components are at the bottom of the plate
Components do not move from the baseline
Components are separated well, one near the top and one near the middle
Components are very close together
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