TEL is a compound used as
antibiotic
antiseptic
antiknocking
antioxidant
C.
antiknocking
(a) Antibiotics are the chemicals which are produced by microbes and are used to inhibit the growth of other microbes, eg, penicillin, tetracycline etc.
(b) Antiseptics are the chemicals which can be applied safely to the living tissues to inhibit the growth of microbes or to kill them, eg, dettol.
(c) Antiknocking compounds are the chemicals which reduce knocking for improving the quality ofgasoline. eg, TEL (tetraethyl lead).
(d) Antioxidants are the chemicals which are added to foods to prevent their oxidation eg, BHA (butylated hydroxy anisole).
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
The reagent(s) used in the preparation of aspirin from salicylic acid
SOCl2, pyridine
(CH3CO)2O, H+
CH3CO2H, HCl
CH3Cl, AlCl3
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
Butylated hydroxyl toluene as a food additive acts as
antioxidant
flavouring agent
colouring agnet
emulsifier
