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Purification of organic compounds
Several methods are available for the purification of substances. Though, the selection of method, depends upon the nature of substance (if solid or liquid) and the kind of impurities present in it. Subsequent methods are commonly employed for this aim,
A. Simple crystallisation
B. Fractional crystallisation,
C. Sublimation
D. Simple distillation
E. Fractional distillation
F. Distillation under reduced pressure
G. Steam distillation
H. Azeotropic distillation
I. Chromatography
J. Differential extraction
K. Chemical methods
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Aufbau principle is not satisfied by: (1) Cr and Cl (2) Cu and Ag (3) Cr and Mg (4) Cu and Na Ans: Cu and Ag
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A 10L helium balloon at a pressure of two bar at 27C. Some O 2 is now inside in balloon and final volume is made 30L. the pressure also fell to 1 bar at similar temperature. the p
What is it?
Bromination of Toluene in presence of light or heat gives benzyl chloride, but chlorination of benzene in presence of light gives benzene hexachloride. Why?
what is dilution process?
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