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Streptomycin:
It was discovered in the year 1944 by Waksman. Streptomycin is successful against tuberculosis. It is as well used for other general infections such as ears, throat, kidney and lungs. It is extremely useful in the treatment of pneumonia and meningitis. Streptomycin is an amino base and forms salts that are very soluble in water. The calcium and sulphate chloride double salts are white amorphous powders. The particle keeps two strongly basic quanido groups and a weakly basic methylamino group.
What is the purpose of zone refining One refining process is based on the fact that the first solid to crystallize in a two component system is usually purer than the liquid as
Effects of substituents on the acidity of phenols: Existence of electron attracting group, (for example -NO 2 , -X, - NR + 3 , -CN, -CHO, -COOH) on the benzene ring increases
An example for trihydric phenols
The kinetic theory of gases: The gas laws were empirically developed from experimental observations. The kinetic theory of gases assumes that the molecules or atoms of a gas
why is AAS used to determine lead content in soil
what is the acidity of phenol?
the verification of the law of chemical combination
reversible and irreversible cell with example
What are biamperometric titrations?
The increasing order (lowest first) for the values of e/m (charge/mass) for: (1) e,p,n,a (2) n,p,e,a, (3) n,p,a,e,
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