Butylated hydroxyl toluene as a food additive acts as
antioxidant
flavouring agent
colouring agnet
emulsifier
Which of the following is not true?
Erythromycin is a bacteriostatic antibiotic
Ampicillin is not a natural antibiotic
Prontosil is not converted into sulphanilamide in the body
Vancomycin is a broad spectrum antibiotic
Bactericidal antibiotics among the following is
tetracycline
erythromycin
ofloxcin
chloromphenicol
C.
ofloxcin
Bacterical antibiotics kill bacteria directly, the suffix 'cidal' means kill, like in the words homicide or suicide. Thus, ofloxcin is a bactericidal antibiotics.
Which of the following is not true for antibiotics?
Tetracycline is one of the broad spectrum antibiotics which are effective against a large number of harmful microorganisms
Streptomycin is highly effective against microorganisms which cause tuberculois
Penicillin has a narrow spectrum and certain persons are sensitive to it
Penicillin may be administered without testing the patients for sensitivity to it
The reagent(s) used in the preparation of aspirin from salicylic acid
SOCl2, pyridine
(CH3CO)2O, H+
CH3CO2H, HCl
CH3Cl, AlCl3