A. CaF2.3Ca3(PO4)2
B. 3Ca3(PO4)2
C. Ca(PO3)2
D. Ca(H2PO4)2
Related Mcqs:
- Triple superphosphate is made by reacting phosphate rock with _____________ acid?
A. Phosphoric
B. Nitric
C. Sulphuric
D. Hydrochloric - P2O5 content in triple superphosphate is about ______________ percent?
A. 42-50
B. 15-20
C. 85-90
D. 70-75 - Triple superphosphate which contains about 46% P2O5 is produced by the reaction of phosphate rock with ortho phosphoric acid of_____________ percent concentration?
A. 25-28
B. 52-54
C. 75-80
D. > 98 - Tricresyl phosphate is chemically represented as___________________?
A. (CH3 C6 H4)3 PO4
B. Ca10(PO4)3F6
C. (NH4)2HPO4
D. NH4H2PO4 - P2O5 content in superphosphate is about _____________ percent?
A. 30-35
B. 15-20
C. 65-70
D. 85-90 - Superphosphate is manufactured by reacting phosphate rock with_____________________?
A. Acetic acid
B. Sulphuric acid
C. Aluminium chloride
D. None of these - Nitrolime is chemically known as____________________?
A. Calcium nitrate
B. Ammonium nitrate
C. Calcium ammonium nitrate (CAN)
D. None of these - Urea is represented as______________________?
A. NH2.CO.NH2
B. NH3CO.CH3
C. NH.CO2.NH
D. NH3.CO2.NH3 - An increase in the NH3/CO2 ratio in urea manufacture results in__________________?
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 - Catalyst used in ammonia synthesis uses ____________ as a promoter?
A. Pt
B. K2O
C. Al2O3
D. Ni