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.Management Sciences
Category: Chemical Process
Which is the most suitable dye for synthetic fibres ?
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A. Acid dye
B. Azoic dye
C. Pigment dye
D. Mordant dye
Oil produced by solvent extraction________________?
A. Has low free fatty acid content
B. Is odourless
C. Both A. & B.
D. Neither A. nor B.
Dehydrogenation of ethyl benzene produces __________________ ?
A. Styrene
B. Naphthalene
C. Phenol
D. Benzoic acid
Thermosetting materials ______________________?
A. Are cross-linked molecules
B. Soften on application of heat
C. Are solvent soluble
D. None of these
Ethylene oxide is produced by oxidation of ethylene in presence of AgO catalyst at __________________?
A. 1 atm & 100°C
B. 5 atm & 275°C
C. 100 atm & 500°C
D. 50 atm & 1000°C
Lindane is____________________?
A. Not a fumigant
B. BHC (Benzene Hexachloride) containing 99% γ-isomer
C. A by-product of BHC manufacture
D. Both B. and C.
The process used for the manufacture of ethyl alcohol from molasses is_________________?
A. Distillation
B. Dehydration
C. Dehydrogenation
D. None of these
Ore concentration by froth floatation utilises the ______________ of ore particles ?
A. Density difference
B. Wetting characteristics
C. Terminal velocities
D. None of these
Commercial production of calcium carbide requires limestone and __________________ as raw materials?
A. Coke
B. Sand
C. Soda ash
D. Fuel oil
The drug used in contraceptives is____________________?
A. Sulfadiazine
B. Mestranol
C. Methyl salicylate
D. Penicillin
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