strong>A. Antibiotic
B. Antiseptic
C. Disinfectant
D. None of these
Related Mcqs:
- A bio-catalyst produced by living cells which acts independent of the cell is called a/an_______________?
A. Substrate
B. Enzyme
C. Nutrient
D. None of these - Styrene (a monomer for the production of polystyrene) is commercially produced by ____________________?
A. Catalytic dehydrogenation of ethyl benzene
B. Dehydration of ethyl alcohol followed by hydrogenation
C. Reacting ethylene oxide with acetaldehyde
D. Fermentation of starch - Bleaching powder (chemically known as calcium chloro hypochlorite) is commercially produced by the action of chlorine on ____________________?
A. Slaked lime
B. Soda lime
C. Calcium perchlorate
D. None of these - The most commonly used substance to speed up the sedimentation of sewage is___________________?
A. Lime
B. Sulphuric acid
C. Chlorine
D. Sodium bisulphite - Resistance to fusion of the refractory under a steady rising temperature condition is called ____________________ ?
A. Spalling
B. Refractoriness
C. Both A. & B.
D. Neither A. nor B. - Sulphur removal by heating of pyrite ore in presence of air is called its ____________________?
A. Reduction
B. Roasting
C. Calcination
D. Smelting - Nitrile rubber is produced by the polymerisation of__________________?
A. Acrylonitrile and butadiene
B. Acrylonitrile and styrene
C. Isobutylene and isoprene
D. None of these - Styrene is produced from ethyl benzene by the process of________________?
A. Dehydrogenation
B. Oxidation
C. Alkylation
D. Dehydration - Alcohol is produced by the___________________?
A. Oxidation of an aldehyde
B. Hydrolysis of an ether
C. Esterification of a fat
D. None of these - Vinyl chloride (CH2 = CH.Cl) is produced by the thermal pyrolysis of ethylene dichloride at a pressure & temperature of __________________?
A. 4 kgf/cm2 & 500°C
B. 10 kgf/cm2 & 1000°C
C. 40 kg/cm2 & 200°C
D. 100 kgf/cm2 & 500°C
