Experimental Techniques in Chemistry - 17
1.
Undesirable colours can be removed from crystals by heating with animal charcoal.
a) False
b) True
2.
A mixture naphthalene and benzoic acid can be separated by sublimation.
a) False
b) True
3.
Distribution of solute between the two immiscible liquids in a constant ration of concentration depends upon the amount of solvent added.
a) True
b) False
4.
The basic principle of chromatography is distribution law.
a) False
b) True
5.
Chromatography in which stationary phase is solid is called partition chromatography
a) False
b) True
6.
Paper chromatography is qualitative analysis.
a) True
b) False
7.
Chromatography is a purification technique.
a) False
b) True
8.
Components with large value of Rf remain in the stationary phase.
a) False
b) True
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