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Class 12
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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?
Differential partitioning of components
Differential adsorption of components
Difference in the boiling points of the components
Difference in the solubility of the components
3)
Which one of the following is not an example for eluent in chromatography?
Hexane
Chloroform
Silica gel
Benzene
4)
The process of removing analytes from the adsorbent by running a solvent is called
Absorption
Elusion
Adsorption
Sorption
5)
Mixtures of volatile liquids are commonly separated by a method called
Column chromatography
Paper chromatography
Thin layer chromatography
Gas chromatography
6)
Which one of the following is the most commonly used carrier gas in gas chromatography?
Oxygen
Helium
Bromine
Chlorine
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?
0.88
0.98
1.98
1
8)
The orange coloured pigment present in the extract of spinach leaves is
Chlorophyll b
Carotene
Xanthophyll
Chlorophyll a
9)
In paper chromatography, which one of the following acts as the stationary phase?
Alumina
Narrow glass
Silica gel
Cellulose
10)
The process of addition of a mixture to the chromatographic column is called
Loading
Sorption
Elution
Developing