A. Nickel
B. Platinum
C. Silica gel
D. Rhodium
A. NO
B. NO2
C. N2H5
D. NH3
A. Water
B. Naphtha
C. Tar
D. Coal/coke oven gas
A. Counteract burning
B. Avoid caking & hardening
C. Produce bulk
D. Increase its solubility
A. It is cheaper
B. Nitrogen content is higher
C. It is not poisonous
D. It is easy to manufacture
A. Phosphoric acid
B. Coke
C. Sulphuric acid
D. Silica and coke
A. Increased degree of conversion of CO2 to urea
B. Decreased degree of conversion of NH3 to urea
C. Decreased yield of urea
D. Decreased specific volume of molten mass
A. Ammonium sulphate
B. Calcium ammonium nitrate
C. Urea
D. Liquid ammonia
A. By fractionation of liquefied air
B. By dissociating oxides of nitrogen
C. From coal gas (coke oven gas)
D. From producer gas
A. Nitrogen
B. Potassium
C. Phosphorous
D. Sulphur