Chemical Engineering » Fertilizer Technology
Leaching of phosphate rock by strong ____________ acid produces phosphoric acid ?

A. Sulphuric
B. Hydrochloric
C. Either A. or B.
D. Neither A. nor B.

A nitrogenous fertiliser contains 20% N2. It could be_________________?

A. Ammonium nitrate
B. Calcium ammonium nitrate (CAN)
C. Urea
D. Ammonium chloride

Which of the following is the costliest source of hydrogen needed for ammonia manufacture under Indian condition _______________?

A. Electrolysis of water
B. Cryogenic removal of H2 from coke oven gas
C. Steam reforming of naphtha
D. Natural gas cracking

Chemical formula of meta-phosphoric acid is ___________________?

A. H3PO4
B. H4P2O7
C. HPO3
D. Same as that of Pyrophosphoric acid

Gas based fertiliser plants use_________________?

A. Natural gas as a source of hydrogen
B. Natural gas as heating medium
C. Coal gas as a source of hydrogen
D. Coal gas as heating medium

Main constituent of phosphate rock is_____________________?

A. Ammonium phosphate
B. Flour apatite
C. Calcium fluoride
D. Calcium phosphate

Low grade coal is ______________ to produce ammonia synthesis gas?

A. Hydrogenated
B. Liquefied
C. Gasified
D. Dehydrogenated

Catalyst used in steam reforming of naphtha is ___________________?

A. Bauxite
B. Cobalt
C. Nickel oxide on alumina support
D. Chromium