Rock phosphate constitutes mainly of___________________?
A. Fluorapatite
B. Di-calcium phosphate
C. Mono-calcium phosphate
D. Di-ammonium phosphate
A. Fluorapatite
B. Di-calcium phosphate
C. Mono-calcium phosphate
D. Di-ammonium phosphate
A. Having about 40% N2
B. Not hygroscopic
C. Not prone to explosive thermal decomposition
D. Mixed with limestone powder to reduce its explosive nature before using it as a fertilizer
A. Steam reforming of naphtha and cracking of natural gas
B. Electrolysis of water
C. Cryogenic separation of hydrogen from coke oven gas
D. All A., B. and C.
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
A. Ammonia
B. Urea
C. Superphosphate
D. Triple superphosphate
A. Corrosive in nature
B. Toxic and harmful to some crops
C. Helpful in decomposition of urea
D. Explosive in nature
A. 120°C and 300 atm
B. 190°C and 200 atm
C. 400°C and 550 atm
D. 200°C and 10 atm