Thin Layer Chromatography
Authored by Anna Duncan
Chemistry
12th Grade - University
Used 260+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
TLC stands for...
Tender Love & Care
Thick Layer Chromatography
Thin Layer Chromatography
Thin Liquid Chromatography
2.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
In TLC substances are separated because of differences in_______. Tick all that apply.
polarity
molecular size
concentration
electronegativity
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The distance travelled by the compound depends on how soluble it is in the chosen solvent.
TRUE
FALSE
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The distance travelled by the compound depends on how well it adheres to the plate.
TRUE
FALSE
5.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
What is normally required to visualise the spots on a TLC chromatogram? Tick all that apply.
X-rays
Ultraviolet light
Infrared light
Developing agent
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
How to calculate Rf?
Rf = distance travelled by sample / distance travelled by solvent
Rf = distance travelled by solvent / distance travelled by sample
7.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
A compound always has the same Rf value under the same conditions:______. Tick all that apply.
temperature
solvent
saturation levels
solvent volume
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