A. As a starting material for ‘hypo’
B. In photographic industry
C. As rocket fuel
D. In printing industry
Related Mcqs:
- Phthalic anhydride is used____________________?
A. In making PVC
B. As plasticisers
C. In insecticides manufacture
D. For making nylon-6 - Phenol is mainly used____________________?
A. To produce benzene
B. To produce phenol formaldehyde
C. To produce polyester resin
D. As a plasticiser for unsaturated polyester - Hydrazine (N2H4) is used mainly as a/an__________________?
A. Explosive
B. Rocket fuel
C. Detergents additive
D. None of these - Hydrazine is used in water treatment for the removal of___________________?
A. Colloidal impurities
B. Dissolved oxygen
C. Turbidity
D. Chlorinous taste - Main use of hydrazine is___________________?
A. As a rocket fuel
B. In water treatment
C. As a disinfectant
D. As fire retardant - Main product in calcium carbide-water reaction is___________________?
A. Ca(OH)2
B. C2H2
C. CO2
D. CaCO3 - The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is _________________?
A. Dilute H2SO4
B. Oleum
C. Ultraviolet light
D. None of these - Mercury cells for caustic soda manufacture, compared to diaphragm cells___________________?
A. Require lower initial investment
B. Require more power
C. Produce lower concentration NaOH
D. None of these - 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 - Pick out the wrong statement ?
A. Strongly caking coal should not be used in the Lurgi gasifier
B. Acetylene gas cannot be used for illumination purpose
C. Water gas is called blue gas because of the color of the flame, when it is burnt
D. Gaseous fuels require less percentage of excess air for combustion as compared to liquid fuels
