In the other post we already discussed about Chromatography MCQ and Answer; MCQ On Paper Chromatography and others. These MCQ On Thin Layer Chromatography with Answer are most important for Biochemistry, B.Sc/M.Sc/Phd Botany/Chemistry, Biology, Chemistry. These MCQ On Thin Layer Chromatography with Answer helps you to improve your conceptual insight on the phase system.
MCQ On Thin Layer Chromatography
1. The eluant filled in the closed jar is ____________
a) Mixture of gases
b) Mixture of a liquid and a gas
c) Mixture of solids
d) Mixture of liquids
Answer: d
2. Select the incorrect statement from the following options.
a) The spots of colorless compounds are invisible to the eyes
b) These spots can be detected by putting the plate under ultraviolet light
c) These spots can be detected by placing the plate in a covered jar containing iodine crystals
d) None of the mentioned
Answer: d
3. The relative adsorption of each component of the mixture is expressed in terms of its
a) Acceleration factor
b) Retardation factor
c) Both acceleration and retardation factor
d) None of the mentioned
Answer: b
4. Select the correct statement from the following.
a) Paper chromatography is a type of partition chromatography
b) A special quality paper is used in paper chromatography
c) Chromatography paper contains water trapped in it, which acts as stationary phase
d) All of the mentioned
Answer: d
5. Amino acids detected by spraying the plate with ninhydrin solution is an example of
a) Column chromatography
b) Thin layer chromatography
c) Paper chromatography
d) Liquid chromatography
Answer: c
6. Retardation factor is the ratio of ____________
a) Distance moved by substance from base line to distance moved by the solvent from base line
b) Distance moved by solvent from base line to distance moved by the substance from base line
c) Distance moved by substance from top line to distance moved by the solvent from top line
d) Distance moved by solvent from top line to distance moved by the substance from top line
Answer: a
7. The principle on which thin layer chromatography is based is that the ____________
a) Different compounds are absorbed on an absorbent to different degrees
b) Different compounds are absorbed on an absorbent to same degrees
c) Different compounds are adsorbed on an adsorbent to different degrees
d) Different compounds are absorbed on an absorbent to same degrees
Answer: c
8. The size of a thin layer of adsorbent is about ____________
a) 0.1 mm
b) 0.2 mm
c) 0.3 mm
d) 0.4 mm
Answer: b
9. The chromaplate or thin layer chromatography plate is made up of ____________
a) Glass
b) Wood
c) Fibre
d) Metal
Answer: a
10. Which is not TLC development?
A. Sandwich method
B. Horizontal
C. Teo dimensional
D. Column
Answer: d
11. Which is not an application of TLC?
A.TLC can be successful used for isolation of vitamin like A,D,andE using silica gel.
B. Identification of drug.
C. Neomycin sulphate can be isolating on activated compound.
D. To determination of moisture.
Answer: d
12. In Iodine chamber, which colour spot are seen?
A. Red colour.
B. Brown colour.
C. Yellow colour
D. Green colour
Answer: b
13. Half plate size is
A. 20×10 cm
B. 10× 10 cm
C. 20× 20 cm
D. 5×5 cm
Answer: a
14. Which method are used for suspension spraying?
A. Pouring
B. Dipping
C. Spraying
D. Spreading
Answer: c
15. Capillary diameter is
A. 5 mm
B. 6 mm
C. 7 mm
D. 10 mm
Answer: a
16. Which temperature is required for activation of plate ?
A. 110-120 C°
B. 120-130 C°
C. 130-149 C°
D. 150-160 C°
Answer: b
17. Which is not Requirement of mobile phase?
A. It should be not toxic.
B. It should be easily available.
C. It should be chemically inert.
D. It should be chemically active.
Answer: d
18. How many time is required to dry TLC plate?
A. 15 minutes
B. 30 minutes
C. 10 minutes
D. 7 minutes
Answer: b
19. In quantitative T.L.C radioactive material can be studied by (GATE 1997)
A. Visual comparison
B. Gravimetry
C. Densitometer
D. Ginger counter
Answer: d
20. The stationary phase in thin layer chromatography is: – (Gate1993)
A. Liquid held between glass
B. Glass plate
C. Silica gel
D. None of the above
Answer: c
21. In TLC, initially the sample is
A. In contact with mobile phase
B. Not in contact with mobile phase
C. Coated at the level of mobile phase
D. Coated below the level of mobile phase
Answer: b
22. What is the principle of TLC?
A. Partition
B. Absorption
C. Adsorption
D. A and B
Answer: c
23. Which sentence is false about TLC?
A. It is very sample method
B. It is less time consuming.
C. Applied to allow type of sample.
D. It is very costly.
Answer: d
24. Which is not factor for choosing adsorbent?
A. Nature of the adsorbent
B. Solubility of the adsorbent
C. Chemical nature
D. Temperature.
Answer: d
25. The m.p. is flow by
A. Capillary action
B. Partition coefficient
C. Temperature
D. All of the above
Answer: a
26. The components with more affinity towards the stationary phases is
A. Travels slow
B. Travels fast
C. A and B
D. None of the above
Answer: a
27.The components with less affinity towards the stationary phases is
A. Travels slow
B. Travels fast
C. A and B
D. None of the above
Answer: b
28. Chromatography is a physical method that is used to separate and analyse __________
A. Simple mixtures
B. Complex mixtures
C. Viscous mixtures
D. Metals
Answer: b
29. In chromatography, the stationary phase can be ___________ supported on a solid.
A. Solid or liquid
B. Liquid or gas
C. Solid only
D. Liquid only
Answer: a
30. In chromatography, which of the following can the mobile phase be made of?
A. Solid or liquid
B. Liquid or gas
C. Gas only
D. Liquid only
Answer: b
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