A. 2
B. 10
C. 25
D. 50
Sodium chloride content in sea water is about _______________ gms/liter? Read More »
Chemical Process A. 200-300
B. 700-850
C. 2000-2200
D. 4000-4500
The temperature in the calcium carbide furnace is _______________ °C ? Read More »
Chemical Process A. Less susceptible to chemical attack by molten fluxes and gases etc
B. Very strong
C. Having very high thermal conductivity
D. None of these
Highly porous refractory bricks are ____________________? Read More »
Chemical Process A. L.D. steel making
B. Cutting and welding of metals
C. Medicinal purposes
D. Chemical oxidation processes
Low purity oxygen is used for____________________? Read More »
Chemical Process A. NaOH
B. H2SO4
C. Hydrazine
D. Alum solution
Anion exchanger is regenerated usually with ____________________? Read More »
Chemical Process A. Hexamethylene diamine and adipic acid
B. Hexamethylene diamine and Maleic anhydride
C. Caprolactam
D. Dimethyl terephthalate and ethylene glycol
Nylon-66 is manufactured from____________________? Read More »
Chemical Process A. Na2CO3
B. NaHCO3
C. H2
D. None of these
A. 20 – 30
B. < – 5
C. 100 – 150
D. 250 – 300
Fermentation of molasses to produce ethyl alcohol is done at ________________ °C? Read More »
Chemical Process A. Drying
B. Semi-drying
C. Non-drying
D. None of these
A. Chloramine
B. Chlorine
C. Ferrous sulphate
D. Hydrogen peroxide
Which of the following is used as a coagulant in water treatment ? Read More »
Chemical Process