Saccharin, an artificial sweetener is manufactured from

• toulene

• cyclohexane

• starch

• cellulose

Butylated hydroxyl toluene as a food additive acts as

• antioxidant

• flavouring agent

• colouring agnet

• emulsifier

73.

Which of the following is employed as a tranquiliser?

• Equanil

• Naproxen

• Tetracycline

• Dettol

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

The drug used to bring down fever are known as

• analgesic

• antibiotic

• antipyretic

• sulpha drugs

TEL is a compound used as

• antibiotic

• antiseptic

• antiknocking

• antioxidant

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

Moth repellents are

• 

• perchloroethane

• 

• All of these