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Antibiotics

Antibiotics
Chlorotetracyclin is soluble in

water
all of these
ether
organic solvents

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Antibiotics
Penicillin is recovered after fermentation as

penicillin only
sodium penicillin
potassium penicillin
calcium penicillin

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Antibiotics
Streptomycin is produced by

S. aerofaciens
S. griseus
S. griseoflavus
S. ramosus

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Antibiotics
pH of the fermentation medium for chlorotetracyclins is

8-9
6-7
5-6
7-8

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Antibiotics
At normal pH, penicillin remains in

precipitates
both (a) and (b)
solvent phase
aqueous phase

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Antibiotics
During which phase of growth of Penicillium chrysogenum maximum antibiotic production takes place

during the third phase
during the first phase
same in all the phases
during the second phase

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MORE MCQ ON Antibiotics

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