Q739
Rock phosphate has chemical composition
A.
(CaO)3, P2O5
B.
Ca3(PO4)2
AnswerC.
Ca3PO4
D.
CaCO3
Answer: Option B
Solution
Answer: Option B
Solution:
Rock phosphate is a non detrital sedimentary rock that contains high amounts of phosphate minerals. Rock phosphate has a chemical composition of Ca3(PO4)2.the phosphate content of phosphorite varies greatly from 4% to 20% phosphorous pentaoxide (P2O5).
Around 90% of rock phosphate production is used for fertilizer and animal feed supplements and the balance for industrial chemicals.