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Antibiotics:
A chemical substance generated by or derived from living cells that is able of inhibiting the life procedures or even destroying micro-organism is known as Antibiotics.
The first antibiotic, exposed by Alexander Fleming in the year 1929 from the mould penicillium notatum, was penicillin. In the year 1938, Howard Florey and Ernst Chain isolated penicillin in pure form and proved its efficiency as an antibiotic. It was in progress into medical practice in the year 1941. Penicillin is utilized beside large number of infections caused by several cocci, gram affirmative bacteria, and so on. It is an effectual drug for abcesses, bronchitis, pneumonia and sore throat. Naturally happpening penicillins have been isolated all of these compeises the empirical formula, C9H11O4SN2R
Formic acid is a weak acid along with a pKa of 3.75. The name comes by the Latin term "formica" ("ant") since this is very plentiful into the secretions of several species of ants,
1. A sample of water contains: suspended matter = 100 mg; Ca(NO3)2 = 16.4 mg/L; MgSO4 = 24 mg/L; MgCl2 = 19 mg/L; NaOH = 40 mg/L and KOH = 56 mg/L. Calculate temporary, permanent a
dicarboylic acids fully
Physical properties of Acetophenone - Aldehydes and Ketones a. Acetophenone is a colourless crystalline solid with melting point 20°C and boiling point 202°C. b. Acetophenon
Alicyclic compounds - Homocyclic or Carbocyclic These are the compounds that consist of rings of three or more carbon atoms. These resemble along with aliphatic compounds than
Q. How to produce Nitrogen on Industrial Level? Ans. Nitrogen is produced by the fractional distillation of liquid air. Air is cooled to liquefy it. The liquid is then all
calculate the enthalpy of combustion for acetic acid using standard enthalpies of formation.
Which of the following principles/rules limits the maximum number of electrons in an orbital to two: (1) Aufbau principle (2) Pauli's exclusion principle (3) Hund's rule
Free radical aromatic substitution - Hydrocarbon The aromatic substitution reactions that follow free radical mechanisms are extremely few and have limited synthetic value. Alt
Gold has a molar mass of 197g/mol. How many atoms are in the sample?Please give me procedure also. Ans) molecular wieght of gold is 197 g 1mole/g of molecule is occupies t
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