The temperature in the calcium carbide furnace is _______________ °C ?
A. 200-300
B. 700-850
C. 2000-2200
D. 4000-4500
A. 200-300
B. 700-850
C. 2000-2200
D. 4000-4500
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
A. L.D. steel making
B. Cutting and welding of metals
C. Medicinal purposes
D. Chemical oxidation processes
A. NaOH
B. H2SO4
C. Hydrazine
D. Alum solution
A. Hexamethylene diamine and adipic acid
B. Hexamethylene diamine and Maleic anhydride
C. Caprolactam
D. Dimethyl terephthalate and ethylene glycol
A. Na2CO3
B. NaHCO3
C. H2
D. None of these
A. 20 – 30
B. < – 5
C. 100 – 150
D. 250 – 300
A. Drying
B. Semi-drying
C. Non-drying
D. None of these
A. Chloramine
B. Chlorine
C. Ferrous sulphate
D. Hydrogen peroxide
A. Inferior coke compared to low temperature carbonisation
B. Less of gases compared to liquid products
C. Larger quantity of tar compared to low temperature carbonisation
D. None of these