Polycaprolactam is commercially known as___________________?
Polycaprolactam is commercially known as___________________?
A. Nylon-6
B. Nylon-66
C. Dacron
D. Rayon
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___________________ iron is the purest form of iron?
___________________ iron is the purest form of iron?A. Cast
B. Wrought
C. Pig
D. High siliconMannheim furnace is used in the manufacture of_________________?
Mannheim furnace is used in the manufacture of_________________?A. Hydrochloric acid
B. H2SO4 by Chamber process
C. Calcium carbide
D. CorundumMineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its________________?
Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its________________?A. Poor oxidation stability and high gum forming tendency
B. Greater tendency of decomposition at elevated temperature
C. Hydrolysis tendency in presence of water
D. All A, B. and CCarboxymethyl cellulose (CMC) is added in detergents to_________________?
Carboxymethyl cellulose (CMC) is added in detergents to_________________?A. Prevent redeposition of soil on cleaned surface
B. Act as optical brightening agent
C. Inhibit corrosion in washing machines made of aluminium
D. None of theseProcess conditions in fermentator used for production of penicillin is____________________?
Process conditions in fermentator used for production of penicillin is____________________?A. 25°C, 2 atm
B. 50°C, l0 atm
C. 30°C, 200 mm Hg (absolute)
D. 90°C, 45 atmZeolite used in water softening process (cation exchange) is regenerated by washing with___________________?
Zeolite used in water softening process (cation exchange) is regenerated by washing with___________________?A. Brine
B. Chloramines
C. Sodium bisulphite
D. Liquid chlorines