Experimental Techniques in Chemistry - 6
1.
To achieve a good separation, the two liquids are gently shaken to increase their area of
a) Contact
b) Miscibility
c) Separation.
d) Solubility
2.
Chromatography involves the distribution of a solute between.
a) Two stationary and two mobile phase.
b) Two mobile phase
c) A stationary phase and a mobile phase
d) Two stationary phase
3.
Chromatography in which stationary phase is a solid is called.
a) Partition chromatography
b) Paper chromatography
c) High pressure
d) Adsorption chromatography
4.
Chromatography in which stationary phase is a liquid is called.
a) Partition chromatography
b) Descending chromatography
c) Adsorption chromatography
d) Column chromatography
5.
In paper chromatography the rate at which solute move depend on.
a) Law of specific propostion.
b) Law of partial pressure
c) Distribution law
d) Distribution co-efficients
6.
Analytical chemistry is normally considered the science of ________.
a) Compounds
b) Chemical characteriztion.
c) Chromatography
d) Crystallization
7.
In qualitative analysis, a chemist is concerned with the detection or identification of the _________ present in a _________.
a) Gas ii. Liquid
b) CaCl
2
ii. Silca gel
c) Elements ii. Compounds
d) Filter paper ii. Filter crucible
8.
Qualitative analysis is the reverse of ________.
a) Filtration
b) Chemical characteriztion.
c) Quantitative Analysis
d) Elements
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