A. Drilling of petroleum wells and pickling of steel sheets
B. Manufacture of cationic detergent
C. Treatment of spent fuel of nuclear reactor
D. None of these
Related Mcqs:
- During the absorption of HCl gas in water (to produce liquid HCl), the gas is kept above dew point to__________________?
A. Increase the rate of absorption
B. Avoid corrosion
C. Reduce the cooling water circulation rate
D. None of these - Multistage catalytic converter is not used in the___________________?
A. Conversion of SO2 to SO3
B. NH3 synthesis reaction
C. Both A. and B.
D. Neither A. nor B. - Alcohol is produced by the___________________?
A. Oxidation of an aldehyde
B. Hydrolysis of an ether
C. Esterification of a fat
D. None of these - Dry ice (solidified CO2) is used for the___________________?
A. Storage & shipment of frozen foods and ice-creams
B. Liquefaction of permanent gases
C. Liquefaction of natural gas
D. None of these - A ‘unit process’ is exemplified by the___________________?
A. Distillation
B. Hydrogenation of oils
C. Absorption
D. Humidification - Main product in calcium carbide-water reaction is___________________?
A. Ca(OH)2
B. C2H2
C. CO2
D. CaCO3 - Chalcopyrite is the main ore of_________________?
A. Copper
B. Lead
C. Tin
D. Iron - Main constituent of dolomite is __________________?
A. CaCO3
B. MgCO3
C. K2CO3
D. Na2CO3 - Which of the following has sodium bicarbonate as its main constituent ?
A. Baking soda
B. Baking powder
C. Washing soda
D. None of these - Main use of hydrazine is___________________?
A. As a rocket fuel
B. In water treatment
C. As a disinfectant
D. As fire retardant
