Coke oven gas consists mainly of ____________________?
Coke oven gas consists mainly of ____________________?
A. H2, & CH4
B. CO, & CO2
C. H2, & CO
D. CH4, & CO
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Hydrazine (N2H4) is used mainly as a/an__________________?
Hydrazine (N2H4) is used mainly as a/an__________________?A. Explosive
B. Rocket fuel
C. Detergents additive
D. None of theseOxidation of ortho-xylene in presence of ______________ catalyst is done to produce phthalic anhydride on commercial scale ?
Oxidation of ortho-xylene in presence of ______________ catalyst is done to produce phthalic anhydride on commercial scale ?A. Nickel
B. Vanadium
C. Alumina
D. IronH2S is scrubbed from refinery gases by absorption using ________________________?
H2S is scrubbed from refinery gases by absorption using ________________________?A. Dilute H2SO4
B. Ethanol amine
C. Chilled water
D. Tri-butyl phosphatePurity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about _____________ °C ?
Purity of oxygen used for blowing in steel making L.D. converter is 99.5%. The boiling point of oxygen is about _____________ °C ?A. -53
B. -103
C. -183
D. -196Bromine content in sea water may be around _________________ ppm?
Bromine content in sea water may be around _________________ ppm?A. 70
B. 640
C. 1875
D. 2500Plaster of Paris is __________________?
Plaster of Paris is __________________?A. CaSO4.½H2O
B. Used for setting of broken bones
C. Both A. and B.
D. Same as gypsum