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Paper Chromatography
Paper Chromatography
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1)
Name the scientist who introduced chromatographic technique?
Albert Einstein
Michael Faraday
Mikhail Tsvet
Isaac Newton
2)
What is the basic principle of paper chromatography?
Difference in the solubility of the components
Differential adsorption of components
Differential partitioning of components
Difference in the boiling points of the components
3)
Which one of the following is not an example for eluent in chromatography?
Hexane
Chloroform
Benzene
Silica gel
4)
The process of removing analytes from the adsorbent by running a solvent is called
Adsorption
Sorption
Absorption
Elusion
5)
Mixtures of volatile liquids are commonly separated by a method called
Thin layer chromatography
Column chromatography
Gas chromatography
Paper chromatography
6)
Which one of the following is the most commonly used carrier gas in gas chromatography?
Bromine
Helium
Chlorine
Oxygen
7)
In the paper chromatographic separation of a mixture of red and blue inks, the distance travelled by red ink is 13.2cm and the distance travelled by the solvent is 15cm. What is the Rf value of red ink?
1
1.98
0.98
0.88
8)
The orange coloured pigment present in the extract of spinach leaves is
Chlorophyll b
Carotene
Chlorophyll a
Xanthophyll
9)
In paper chromatography, which one of the following acts as the stationary phase?
Cellulose
Narrow glass
Alumina
Silica gel
10)
The process of addition of a mixture to the chromatographic column is called
Elution
Developing
Sorption
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